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Electromagnetic Radiation
Page 4
Questions (364)
If you use a filter that transmits only between 1.95-2.05 um, what is the total power falling ona 1 cm^2 detector 1m away from a
1 answer
asked by
Sam
473 views
the relationship bwtween frequency, wavelength, and speed holds for light waves because all forms of electromagnetic radiation
3 answers
asked by
Claudia
1,731 views
what distance does the electromagnetic radiation travel in 50.0 (nu)s?
4 answers
asked by
Dana
1,497 views
What do light bulbs emit to produce light?
(1 point) O protons electrons O neutrons photons
1 answer
asked by
Blue
23 views
All objects emit and absorb electromagnetic radiation. true or false
1 answer
asked by
Blue
35 views
a) If the work function for a certain metal is 1.8 eV, What is the stopping potential for electrons ejected from the metal when
3 answers
asked by
Vanda
1,383 views
What is the wavelength of the electromagnetic radiation emitted from a hydrogen atom when the electron undergoes the transition
4 answers
asked by
Lance
1,344 views
If a wave has a wavelength of 467 nm, what type electromagnetic radiation was measured?
infrared radiation red on the visible
3 answers
asked by
Quinn
1,268 views
Which of the following statements about UV radiation is/are FALSE? (Select all that apply). ?
a. UV B radiation covers a longer
2 answers
asked by
Jasmine
1,219 views
An electromagnetic radiation has a frequency of 5.00 X 10^14 Hz. Calculate its wavelength in a vacuum in metres and nanomatres?
1 answer
asked by
Sarah
1,173 views
"The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed
2 answers
asked by
Travis
1,168 views
A gamma ray is essentially a very high energy photon.
a) True b) False
4 answers
asked anonymously
30 views
A model shows rays do sunlight moving straight from the sun perpendicular to the surface of the earth . What are these rays
1 answer
asked anonymously
55 views
If you know the frequency of any form of electromagnetic radiation, you can determine its wavelength as for all electromagnetic
2 answers
asked by
Fail
1,206 views
Microwave radiation is absorbed by the water in food. As the water absorbs the heat it causes the food to get hot. If the λ of
2 answers
asked by
Marie
1,097 views
Which is not a true statement concerning electromagnetic radiation?
It travels through space at 3.0 x 1010 cm/s. It travels in a
2 answers
asked by
katelyn
1,061 views
Gamma rays of photon energy 0.511 MeV are directed onto an aluminum target and are scattered in various directions by loosely
1 answer
asked by
Vanda
1,054 views
Which of the following is true for the transition of electrons from a higher energy to a lower energy state?
Choose one answer.
5 answers
asked by
ashley --
1,013 views
Assistance required as to why visible light is not emitted when infrared radiation falls on fluorescent materials.
1 answer
asked by
ruby
1,002 views
a) What is the frequency of a photon of UV radiation ( = 2.00 x 10^-7 m)? When you input
large numbers such as those in this
1 answer
asked by
Abby
1,000 views
What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom in an excited state? Report
2 answers
asked by
KB
991 views
An electron undergoes a transition from an n=3 to an n=1 stationary state and red light is released.
Which of the following forms
3 answers
asked by
Ashley
985 views
Light is absorbed and emitted in the form of ________, which are “packets” of electromagnetic radiation that carry a
4 answers
asked by
Sandra
954 views
Under the correct conditions, the element molybdenum emits X-rays with a characteristic wavelength of 0.711A (7.11*10^-11m).
4 answers
asked by
C.
952 views
A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is the energy of a single UV
4 answers
asked by
Robin
885 views
What is the frequency of radiation that has a wavelength of 13 \mu m, about the size of a bacterium?
3 answers
asked by
Caitlin
862 views
a) What is the frequency of a photon of UV radiation ( = 2.00 x 10^-7 m)? (b) Calculate the energy of a photon of UV radiation.
(
1 answer
asked by
hannah
855 views
From the information below, identify element X.
a. The wavelength of the radio waves sent by an FM station broadcasting at 97.1
1 answer
asked by
Gabriela
800 views
What is a photon? Several selections may be correct.
Has an energy of equal to hν. Is a unit of electromagnetic radiation. Is a
2 answers
asked by
Joel
799 views
Titanium (6.94x10^-19) and silicon (7.77x10^-19) surfaces as irradiated with UV radiation with a wavelength of 231 nm. what is
3 answers
asked by
Tiffany
792 views
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
3 answers
asked by
Marium
787 views
Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n = 7 to n =
3 answers
asked by
Emily
752 views
what is the wavelength of radiation with a frequency of 1.50 times 10^13s-1? Does this radiationhave a longer or shorter
4 answers
asked by
stephanie
756 views
Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.503 nm(wavelength of maximum
2 answers
asked by
savannah
704 views
Calculate the wavelength of a photon with energy 2.45 eV.
2 answers
asked by
adex
665 views
Please could someone advise me on answering this question. I need to explain why when infrared radiation falls on fluorescent
1 answer
asked by
Lucy
618 views
X-rays with an energy of 300 keV undergo Compton scattering from a target.
If the scattered x-ray are directed at 30 degrees
4 answers
asked by
Jennifer
623 views
I am wondering if my work makes sense for the following problem:
Warm objects emit electromagnetic radiation in the infra-red
3 answers
asked by
GenChem
576 views
1. A certain radar installation transmits electromagnetic radiation with a wavelength of 2.5 cm. What is the frequency of this
2 answers
asked by
Caroline
544 views
Why is infrared radiation an important thing to monitor for understanding climate change?(1 point) If infrared is absorbed
2 answers
asked by
Rose
525 views
When a metal was exposed to light at a frequency of 3.86× 1015 s–1, electrons were emitted with a kinetic energy of 3.60×
2 answers
asked by
durr
545 views
Which one is correct about Wien’s law for blackbody radiation?
It gives the relationship between the maximum wavelength and
2 answers
asked by
Stormy
549 views
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
2 answers
asked by
ice cream
541 views
the frequency in hz of radiation having energy of 4.18 x 10^-21 j/photon?
2 answers
asked by
clarita
528 views
Microwave radiation is absorbed by the water in food. As the water absorbs the heat it causes the food to get hot. If the λ of
2 answers
asked by
Marie
531 views
Under appropriate conditions, molybdenum emits X rays that have a characteristis wavelength of 0.711 Angstrom.
These X rays are
2 answers
asked by
Tammy
519 views
The greater the work function for a metal,
A) the greater the speed of the ejected electron B) the smaller the speed of the
2 answers
asked by
danielle
529 views
Radio waves, light and X-rays, electromagnetic waves
2 answers
asked by
oumayma
504 views
Electromagnetic radiation (light) consists of waves. More than a century ago, scientists thought that light, like other waves,
2 answers
asked by
azam
495 views
An X-ray tube used for cancer therapy oper- ates at 8.8 MV with a beam current of 19 mA striking a metal target.
Calculate the
2 answers
asked by
Chris
517 views
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