1. physics

    Marks: 1 In which of the following cases is the wavelength of the emitted radiation greatest? Choose one answer. a. Electron jumps from third orbit to second orbit. b. Electron jumps from third orbit to first orbit. c. Electron jumps from fourth orbit to

    asked by ashley --- HELP PLEASEE!!! on May 1, 2011
  2. Science

    1.Infrared radiation has wavelengths ranging from about 800 nm to 1 mm. What is the frequency of radiation of wavelength 970 nm? Answer in units of s−1 . 2.Microwaves, such as those used for radar and to heat food in a microwave oven, have wavelengths

    asked by Emma on February 12, 2015
  3. Physics

    (a) Photoelectrons with a maximum kinetic energy of 7.6eV are emitted from a metal when it is illuminated by ultraviolet radiation with a wavelength of 1.3×10^2 nm. (i) What is the energy of the incident photons in electronvolts? (ii) What is the

    asked by Anon on April 21, 2018
  4. college physics

    A typical wavelength of infrared radiation emitted by your body is 25 µm (2.5 multiplied by 10-5 m). What is the energy per photon of such radiation?

    asked by Josh on April 26, 2010
  5. Chemistry

    Titanium (6.94x10^-19) and silicon (7.77x10^-19) surfaces as irradiated with UV radiation with a wavelength of 231 nm. what is the wavelength of the electrons emitted by the titration surface?

    asked by Tiffany on April 9, 2012
  6. chemistry

    Which of the following statements about UV radiation is/are FALSE? (Select all that apply). ? a. UV B radiation covers a longer wavelength spectrum than UV A radiation. b. UV B radiation has sufficient energy to break any covalent bond. c. UV B radiation

    asked by Jasmine on September 21, 2008
  7. chemistry

    Your 1.1 cubic foot GE microwave oven generates 1100 watts of microwaves at a frequency of 2.45 GHz. a. What is the wavelength of the microwave radiation being emitted? b. How many photons per second of microwaves are being emitted?

    asked by Shell on May 19, 2011
  8. Chemistry

    Howard Wolowitz is developing a radiation detector for the Intemational space Station. He uses a thin film composed of a metal alloy that has a threshold frequency of 5.5x10^15 Hz. When radiation is shone on the thin film, the fastest electron emitted has

    asked by Kara on June 15, 2017
  9. Physics

    The following values are the only allowable energy levels of a hypothetical one-electron atom: E6 = =2 X 10^-19 J E5 = -7 X 10^-19 J E4 = -11 X 10^-19 J E3 = -15 X 10^-19 J E2 = -17 X 10^-19 J E1 = -20 X 10^-19 J A) If the electron were in the n = 3 level,

    asked by Vea on January 24, 2010
  10. physics

    5)a. Electrons accelerated by a potential difference of 12.23 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the longest possible wavelength. b. Calculate the wavelength of light emitted with the

    asked by Sandhya on April 13, 2008
  11. physics

    let p and E denote the linear momentum and energy of emitted photon respectively if the wavelength of incident radiation is increased----

    asked by prasad on February 27, 2013
  12. science

    In the process called fluorescence, some substances absorb photons of one kind of radiation (e.g) ultraviolet radiation), and give out photons of a different kind (e.g visible light). When infrared radiation falls on these materials, visible light is not

    asked by Kelvin on March 6, 2007
  13. chemistry

    the following values are the only energy levels of a hypothetical one electron atom: E6= -2x10^-19J, E4= -11x10^-19J, E2= -17x10^-19J, E5= -7x10^-19L, E3= -15x10^-19J, E1= -20x10^-1J a: if the electon were in the n = 3 level, what would be the highest

    asked by hotmom on April 5, 2014
  14. Astronomy

    Calculate the wavelength and frequency of the radiation emitted by the electronic transition from the 10th to the 9th excited state of hydrogen.

    asked by Anonymous on September 7, 2011
  15. Chemistry

    Considering the emission of the hydrogen atom, a. what is the wavelength of the light emitted by the transition from n = 2 to n = 1. b. In what region of the electromagnetic spectrum does this radiation belong?

    asked by Shell on May 19, 2011
  16. Chemistry

    27. Excess exposure to nuclear radiation can cause harm. All of the following statements about radiation are true EXCEPT A. Radiation can damage living tissue because of the high energy associated with the radiation. B. Radiation can damage biological

    asked by Emily on June 8, 2014
  17. Physics please help!

    A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the shortest wavelength of the radiation emitted.

    asked by Gracie on June 7, 2012
  18. Physics-PLEASE HELP ASAP

    A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the shortest wavelength of the radiation emitted.

    asked by Kevin on June 7, 2012
  19. physics

    A tungsten target is struck by electrons that have been accelerated from rest through a 24.5-kV potential difference. Find the shortest wavelength of the radiation emitted. (in nm)

    asked by andrej on June 2, 2012
  20. Physics

    A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the shortest wavelength of the radiation emitted.

    asked by Jason on June 7, 2012
  21. Chemistry

    Based on the spectrum of the fluorescent lamp, what is the main difference between the radiation emitted by a heated solid (filament) and the radiation emitted by an atomic gas (mercury gas in the fluorescent tube)?

    asked by Emily on May 8, 2012
  22. Physics Please Help ASAP

    A tungsten target is struck by electrons that have been accelerated from rest through a 38.9-kV potential difference. Find the shortest wavelength of the radiation emitted. (answer has to be in nm)

    asked by Rebecca on June 7, 2012
  23. Physics

    The wavelength of the emitted light from a laser is determined by which of the following? a. the active medium's composition b. frequency of the amplifying radiation c. the lasing tube's length d. all of the above

    asked by Anonymous on March 9, 2017
  24. Chem

    which of the following statements is true regarding electromagnetic radiation? Options: 1. electromagnetic radiation with a wavelength of 600 nm travels faster than that with a wavelength of 400 nm. 2. the frequency of electromagnetic radiation determines

    asked by Ally on July 13, 2010
  25. Physics

    The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?

    asked by Abby on March 22, 2011
  26. Physics

    The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?

    asked by amy on March 18, 2011
  27. Physics

    The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?

    asked by Pardis on March 18, 2011
  28. Chemistry

    A potassium metal has a work function F = 4.41 x 10-19 J. Calculate the velocity of electrons emitted by exposing the metal to radiation of wavelength 300 nm.

    asked by Kevin on May 1, 2018
  29. Chemistry

    Can geranium be used to detect infrared radiation emitted by a remote control device that has a wavelength of 902 nm? the work function (binding energy) of geranium is 7.61 x10^-19 J?

    asked by CL on February 23, 2017
  30. Physics

    In which of the following cases is the frequency of emitted radiation greatest? Electrons jump from third to second orbit Electrons jump from fourth to second orbit Electrons jump from first to second orbit Electrons jump from third to first orbit

    asked by gaaaarh on February 3, 2013
  31. physics

    If you are sitting at home in your room, the walls please help me pick one best answer of the followings. 1. emit visible light with a peak wavelength close to 0.5 micrometer. 2. emit thermal radiation in the near infrared with a peak wavelength close to 1

    asked by ice cream on October 4, 2011
  32. Chemistry

    If the minimum (threshold) energy for the emission of an electron from the surface of a particular metal is 3.90 X 10-19 J, what is the kinetic energy of an electron emitted from the surface of the metal when it is irradiated by electromagnetic radiation

    asked by Jill on October 10, 2014
  33. Chemistry

    Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies. a) The C---O bond absorbs radiation of wavelength 9.6um. What frequency (in s-1) corresponds to that wavelength? b) The H---Cl bond has a frequency of

    asked by Grace on September 8, 2011
  34. Science

    How is the temperature of the Earth affected by factors controlling the balance between incoming radiation and radiation emitted...?

    asked by Naeha on June 20, 2017
  35. Chemistry ASAP please?

    For electromagnetic radiation with a wavelength of 576.3 nm: (a) What is the frequency of the radiation (in s-1)? (b) What is the energy (in J) of one photon of the radiation? (c) What is the energy (in kJ) of one mole of photons of the radiation So a I go

    asked by Jake on November 4, 2017
  36. physics

    Which of the following is true for the transition of electrons from a higher energy to a lower energy state? Choose one answer. a. The greater the energy difference between the levels, the more is the wavelength of the photons emitted. b. The greater the

    asked by ashley --- HELP PLEASEE!!! on May 1, 2011
  37. physics

    Which of the following is true for the transition of electrons from a higher energy to a lower energy state? Choose one answer. a. The greater the energy difference between the levels, the more is the wavelength of the photons emitted. b. The greater the

    asked by ashley -- on April 28, 2011
  38. chemistry

    one reason carbon monoxide(CO) is toxic is that it binds to the blood protein hemoglobin more strongly than oxygen does. The bond between hemoglobin and CO absorbs radiation of 1953 cm^-1. (the units are the reciprocal of the wavelength in centimeters).

    asked by kelsie on October 13, 2008
  39. Physics Help please

    im not really understanding the question can someone please help me. the energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition (quantum jump) from C to B, an electron emits a photon of

    asked by Jared on May 2, 2012
  40. college physics

    If you are sitting at home in your room, the walls 1. emit visible light with a peak wavelength close to 0.5 micrometer. 2. emit thermal radiation in the near infrared with a peak wavelength close to 1 micrometer. 3. emit thermal radiation in the

    asked by ice cream on October 4, 2011
  41. science

    what is the wavelength of radiation with a frequency of 1.50 times 10^13s-1? Does this radiationhave a longer or shorter wavelength than red light? also... What is the energy of a photon of microwave radiation with a frequency of 3.20 times 10^11 s-1?

    asked by stephanie on November 3, 2009
  42. Chemistry

    The protective action of ozone in the atmosphere comes through ozone's absorption of UV radiation in the 230 to 290 nm wavelength range. What is the energy, in kilojoules per mole, associated with radiation in the wavelength range?

    asked by Bobby on October 22, 2013
  43. college physics

    The energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition (quantum jump) from C to B, an electron emits a photon of wavelength 300 nm. What is the wavelength emitted when the photon

    asked by Kelly on April 26, 2010
  44. Science

    Which one is correct about Wien’s law for blackbody radiation? It gives the relationship between the maximum wavelength and intensity the temperature and intensity the range of wavelength and frequency the wavelength for its maximum intensity and

    asked by Stormy on November 11, 2010
  45. forensic science

    "In fluorescence microscopy, the wavelength of the emitted light is __________that of the exciting radiation." Longer than Shorter than Equal to Either longer or shorter than Impossible to determine My answer is Longer than am I correct

    asked by Ann on June 8, 2017
  46. science

    What is the wavelength of waves transmitted by an AM radio station operating at a frequency of 840 kilohertz? Calculate the energy of a photon whose frequency is 2450 megahertz What is the difference in energy for a photon of ultra-violet radiation,

    asked by anna on December 5, 2012
  47. science

    One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more strongly than oxygen does. The hemoglobin – CO bond absorbs radiation of 1953 cm–1, which are in units of wavenumbers. Wavenumber is defined as the reciprocal

    asked by Johannie on April 1, 2010
  48. science

    One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more strongly than oxygen does. The hemoglobin – CO bond absorbs radiation of 1953 cm–1, which are in units of wavenumbers. Wavenumber is defined as the reciprocal

    asked by Johannie on April 1, 2010
  49. Physics

    A metal surface is struck with light of wavelength 430 nm releasing a stream of electrons.  If the 430 nm light is replaced by 380 nm light of the same intensity, what is the result? a. no change to the emitted electrons b. emitted electrons are more

    asked by Alphonse on December 3, 2012
  50. Chemistry

    Calculate the energy involved in the transition of an electron in the hydrogen atom from level 5 to level 2. Use the energy to calculate the wavelength of electromagnetic radiation emitted. However, do not change the fractions to lowest common denominator.

    asked by Anonymous on November 5, 2011
  51. chemistry

    When a photon of light hits the surface of a metal, a photoelectron may be emitted. Some of the photon's energy is required to free the electron from the surface. The remaining energy becomes the kinetic energy of the photoelectron. The minimum energy for

    asked by Kristen on October 21, 2013
  52. physics

    Electromagnetic radiation having a 12.0 µm wavelength is classified as infrared radiation. What is its frequency? 1 Hz i got 1.31e+13???

    asked by Amelia on May 29, 2012
  53. astronomy

    What is the wavelength of electromagnetic radiation that has a frequenc of 3 x 10 16 Hz? In what part of the spectrum does this radiation occur?

    asked by lynn on September 29, 2011
  54. physics

    A radar installation that is used to track airplanes transmits electromagnetic radiation with a wavelength of 4 cm. Calculate the frequency of this radiation in Hz.

    asked by LL on July 1, 2012
  55. chemistry

    Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.503 nm(wavelength of maximum solar radiation) i need help please!

    asked by savannah on January 25, 2013
  56. chemistry

    What would the wavelength of radiation whose frequency is 5.75*10 to the 9th cycles per second be? Name the type of radiation it is?

    asked by Elaine on February 10, 2011
  57. Chemistry

    An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true? Correct the false statements to make them true. A. It takes more energy to ionize (completely remove) the electron from n=3

    asked by Anonymous on December 1, 2014
  58. Chemistry!

    a microwave oven uses electromagnetic radiation with a wavelength of 3.00x10^6 nm. calculate energy (in joules) of 1.65 moles of photons of this radiation.

    asked by Rachel on April 6, 2011
  59. physics

    if a scientist working with electromagnetic radiation has detected a frequency of 2.8X10^10Hz for one of the waves, what is the wavelength of this radiation wave?

    asked by carmen on May 30, 2013
  60. Chemistry

    microwave ovens work by irradiating food with microwaves, which is absorbed by the water molecules in the food and is converted into heat. Assuming that microwave ovens emit radiation with a wavelength of 12.2cm, calculate how many photons are emitted per

    asked by Kez on November 5, 2012
  61. College Physics II

    A typical gamma ray emitted from a nucleus during radioactive decay may have an energy of 736 keV. What is its wavelength? A microwave oven produces electromagnetic radiation at λ = 12.1 cm and produces a power of 778 W. Calculate the number of microwave

    asked by VJC on November 25, 2010
  62. Physics

    When light of wavelength 130 nm falls on a cobalt surface, electrons having a maximum kinetic energy of 4.55 eV are emitted. Find values for the following. (a) the work function of cobalt (in eV) (b) the cutoff wavelength (in nm) (c) the frequency

    asked by Theresa on April 13, 2017
  63. physics

    b. If you are cruising down the road at 50 mph and a policeman with a radar gun (wavelength 1 cm) reflects radar light off your bumper, what wavelength of radar light does he get back? Assume the policeman is stationary, and you are moving towards him.

    asked by DJ on April 15, 2012
  64. metreology

    Wien’s radiation law says that the wavelength of most intense radiation (λmax) emitted by a blackbody is inversely proportional to the absolute temperature (T) of the object. The surface of the Sun radiates as a blackbodyat a temperature ofT=6000

    asked by larry on December 22, 2015
  65. Chemistry

    According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another? The wavelength of the photon emitted depends on the difference of the two levels the electron moved from/to.

    asked by Tomaya on December 7, 2006
  66. physics

    The threshold wavelength for photoelectric emission in metal is 600 nm.Find the maximum kinetic energy of the electrons emitted when it is exposed to the wavelength 200 nm

    asked by Anonymous on March 13, 2016
  67. chemistry

    Sodium vapor lamps are used in Chicago to light city streets. The light emitted (given off) by these lamps has a λ of 5.9 x 10-7 m. What is the λ in cm? What is the λ in nanometers (nm) [1 meter = 1 x 109 nm]? What is the ν of this radiation? In what

    asked by mathew on November 30, 2014
  68. Chemistry

    If a wave has a wavelength of 467 nm, what type electromagnetic radiation was measured?​ infrared radiation red on the visible light spectrum ultraviolet radiation indigo on the visible light spectrum A?

    asked by Quinn on October 22, 2018
  69. Chemistry

    What is the wavelength of a proton traveling at a speed of 6.21 km/s? What would be the region of the spectrum for electromagnetic radiation of this wavelength. How do I do this

    asked by Lauren on November 1, 2007
  70. HELP Science

    1)What do we mean by opponent processing? (2 marks) How are white and yellow produced by the opponent process? (3 marks) 2)Describe how light is produced in the atom (2 marks.) Why does each atom produce only specific colours? (3 marks) 3)How does the

    asked by Ann on February 2, 2018
  71. energy

    What is the difference in energy for a photon of ultra-violet radiation, wavelength 319 nm and a photon of ultra-violet radiation, wavelength 238 nm.

    asked by steph on December 6, 2011
  72. Chemistry

    What is the wavelength of a proton traveling at a speed of 6.21 km/s? What would be the region of the spectrum for electromagnetic radiation of this wavelength. For this one I did the same thing 6.63 X 10^-34/ (? kg)(6210 m/s) = How do get the kg for the

    asked by Lauren on November 3, 2007
  73. More chemistry

    Hey jiskha. Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that is transferred to other components of the food. Suppose that the microwave radiation has a wavelength of 12.7 cm. How many

    asked by Alex on November 14, 2010
  74. Chemistry!

    Hey jiskha. Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that is transferred to other components of the food. Suppose that the microwave radiation has a wavelength of 12.7 cm. How many

    asked by Alex on November 14, 2010
  75. physics

    Please could someone advise me on answering this question. I need to explain why when infrared radiation falls on fluorescent material no visble light is emitted. Is this something to do with infrared being at the lower energy end of the spectrum? I would

    asked by Lucy on February 8, 2007
  76. Science

    Which type of radiation emits particles of helium nuclei? alpha radiation beta radiation induced radiation gamma radiation I think a or d

    asked by Michael on November 10, 2017
  77. *physics*

    Electrons accelerated by a potential difference of 12.87 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the longest possible wavelength. I don't know what equation to use. Any help would be

    asked by Beth Macbeth on March 24, 2008
  78. physics

    the wavelength of ultraviolet radiation is 400nm. if the speed of light in air is exactly 3*10^8m/s, then the frequency of the ultraviolet radiation is? a). 1.3*10^-13hz b). 7.5*10^5hz c) . 1.2*10^11hz d) . 7.5*70^14hz?

    asked by poppy👌🤔 on May 9, 2019
  79. Chemistry

    Water is exposed to infrared radiation of wavelength 3.0×10^−4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 1.7 g of water by 2.2 K?

    asked by Kyle on November 9, 2009
  80. Science - Radiation

    A radioactive isotope, used in the agricultural industry has a half life of 8 days. On application, the radiation is emitted is measured at 12500 counts per sec (cps). If the area that it is applied to cannot be used until the radiation strength is less

    asked by Manu on January 26, 2013
  81. Astronomy

    How does the wavelength of light we observe from those galaxies compare with its original wavelength when it was emitted? The most distant galaxies observed to date have a redshift of approximately z =7.

    asked by Alex-Johnson on May 7, 2012
  82. Physics

    If a metal with a threhold frequency of 1.1 x 10^15 Hz is illuminated by light with a wavelength of 170 nm, then the maximum kinetic energy of the emitted photoelectron will be? this is my solution: h= 6.63 x 10^ -34 J.s c = 3 x 10^8 m/s Wavelength= 1.7 x

    asked by Marium on June 24, 2010
  83. Chemistry help please

    What type of radiation is emitted when K-38 decays into Ca-38?

    asked by Ciaria on March 11, 2015
  84. science

    3×10^18 photons of a certain light radiation are found to produce 1.5 j of energy. calculate the wavelength of light radiation

    asked by Anonymous on June 14, 2016
  85. Physics

    The wavelength of light emitted from a distant galaxy by a hydrogen atom is observed to be 400 nm. If it is known that the laboratory wavelength of this light emitted by hydrogen is 380 nm, what is the velocity of the galaxy? (a) .135c away from Earth (b)

    asked by Arielle on November 4, 2011
  86. science

    the wavelength of the sound emitted by a dog is 0.009 m ; what is the frequency of the whistle ? ( use the formula : V= frequency x wavelength

    asked by ciang on January 7, 2013
  87. Quantum Physics

    How is it a substance can emit photons of visible light after absorbing ultra violet photons but not with infrared radiation The re-emitted photons must be of lessor energy (longer wavelength) than the incident photons. In a one-photon absorption process,

    asked by Sue on March 11, 2007
  88. science

    1.List the types of radiation emitted by the Sun.

    asked by Sam on January 17, 2019
  89. Chemistry

    Some instruments differentiate individual quanta of electromagnetic radiation based on their energies. Assume such an instrument has been adjusted to detect quanta that have 3.50× 10–16 J of energy. What is the wavelength of the detected radiation? Give

    asked by Kate on November 5, 2017
  90. Analytical Chemistry

    A photon of an X-ray radiation has a wavelength of 5.50 Å. For the radiation, calculate the (a)frequency in Hertz, (b)the energy in Joules, (c) the energy in electron volts (eV) and (d) the energy in kJ/mol.

    asked by Kelley on December 9, 2010
  91. Analytical Chemistry

    A photon of an X-ray radiation has a wavelength of 5.50 Å. For the radiation, calculate the (a)frequency in Hertz, (b)the energy in Joules, (c) the energy in electron volts (eV) and (d) the energy in kJ/mol.

    asked by Kelley on December 9, 2010
  92. Chemistry

    What can you say about the energy spread of the radiation emitted by an atomic gas?

    asked by Emily on May 8, 2012
  93. Physics

    A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of wavelength 600 nm. (a) Calculate the frequency of the emitted visible light. (b) How many photons per second of visible light does

    asked by J on April 28, 2008
  94. physics

    A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of wavelength 600 nm. (a) Calculate the frequency of the emitted visible light. (b) How many photons per second of visible light does

    asked by A 75- light source consumes 75 of electrical power. Assume all this energy goes into emitted light on October 21, 2011
  95. chemistry

    A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven and the temperature of

    asked by jimmercarbone on October 31, 2012
  96. chemistry

    A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven and the temperature of

    asked by jimmercarbone on October 31, 2012
  97. Chemistry

    What is the wavelength of the electromagnetic radiation emitted from a hydrogen atom when the electron undergoes the transition n = 5 to n = 3?((Broken Link Removed) is a spectrum m In what region of the spectrum does the line occur? near ultraviolet far

    asked by Lance on June 10, 2011
  98. Physics

    If you know the frequency of any form of electromagnetic radiation, you can determine its wavelength as for all electromagnetic radiation: Frequency is directly proportional to speed. Frequency is inversely proportional to wavelength. Wavelength is

    asked by Fail on October 23, 2012
  99. PHYSICS

    The temperature of the cosmic background radiation is measured to be 2.7 K. What is the wavelength of the peak in the spectral distribution at this temperature? What frequency corresponds to this wavelength?

    asked by Julie on August 10, 2015
  100. Chemistry

    What is the wavelength in Angstroms of radiation that has a frequency of 4.00 x 10^14 s-1? I tried the equation wavelength= constant / frequency. And the fact that 1 Angstrom = 1x 10^-10 m, but I don't see how the correct answer turns out to be 7.5 x 10^3

    asked by Sarah on November 14, 2012