ap chem0 frequency

how do u do this type of problem...

What is the frequency of a photon with a wavelength of 2.25 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 Js



c = fw. c is speed of light which you have, f is frequency for which you must solve, w is wavelength which you have. One unknown. Solve for f.
Post your work if you get stuck. Remember to convert nm to meters.


i did 2.99E8 / 2.25E11 and i got 1.33E-3 but this homework is online and it said the answe is wrong and i have the right right sig figs


225 nm is NOT 2.25E11

nm= 10^-9
225nm= 10^-7 m check my thinking


You should be getting 1.33 x 10^15 hz

  1. 👍 0
  2. 👎 0
  3. 👁 213

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz.

  2. physics

    what is the wavelength of an X- ray photon with energy 10 keV?(10,000eV)? what is the frequency?

  3. chemistry

    Calculate the energy of a photon of radiation with a frequency of 8.5 x 10^14 Hz. Use E=hv, where h = 6.626 x 10^-34

  4. Chemistry

    Restart the PhET simulation and set it up in the following manner: select Oscillate, select No End, and use the parameters in parentheses by sliding the bars for Amplitude (1.00 cm), Frequency (1.20 Hz ), Damping (none), and

  1. Chemistry

    Determine which H atom transition(iinitital, nfinal) was responsible for the absorption of a photon with a frequency of 4.57 x 10^14 Hz. [RH = 2.18 x 10^-18 J; h = 6.63 x 10^-34 J s]

  2. Physics

    A monochromatic light source used in a diffraction experiment has a wavelength of 4.60 x 10- 7 m. (a) What is the frequency of this light? When you input large numbers such as those in this problem, then input the numbers with

  3. Chemistry

    Calculate the frequency of a photon of orange light whose wavelength is 6.2*10^5m. (meters)

  4. chemistry

    Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. (A) 103.1 MHz (typical frequency for FM radio broadcasting) (B) 1015 kHz (typical frequency for AM radio broadcasting) (assume

  1. Physics

    The energy of a photon is directly proportional to its..... I think it may be frequency. Is that correct?

  2. Physical Science

    What is the frequency of a photon of blue light, if it has a wavelength of 440 nm?

  3. Physics

    A photon has a frequency of 7.3 × 10–17 Hz. Planck’s constant is 6.63 × 10–34 J•s. The energy of the photon, to the nearest tenths place, is × 10–50 J.

  4. science

    Find the frequency and wavelength of a 50-MeV gamma-ray photon.

You can view more similar questions or ask a new question.