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A red laser emits light with a frequency f = 4.74x10 14 Hz (where 1Hz = 1 s -1 , or one inverse second). What

  1. A red laser emits light with a frequencyf= 4.74x1014Hz (where 1Hz = 1 s-1, or one inverse second). What is the wavelength of the light emitted by the laser? Answer in units of nanometers (nm). Your answer should come out to be (your answer)x10-9m,but I can't get canvas to accept the negative power in scientific notation, so just provide your answer in units of nanometers, where 1 nm = 10-9m.

  1. A red laser emits light with a frequencyf= 4.74x1014Hz (where 1Hz = 1 s-1, or one inverse second). What is the energy of a single photon emitted by the laser? Answer in units of Joules (J). Your answer should come out to be (your answer)x10-19J, but I can't get canvas to accept the negative power in scientific notation, so just provide the number out in front ("your answer") of the x10-19J factor.
  2. A green laser emits photons of energyE= 3.74x10-19J. What is the frequency of lightemitted by the laser? Answer in units of Joules (Hz, or s-1).

You will have to answer this question using scientific notation. However, you will need to replace "x10" with an "e".

Examples:

2x104would be entered as 2e4

The energy given above, 3.74x10-19J, would be entered 3.74e-19

  1. A green laser emits photons of energyE= 3.74x10-19J. What is the wavelength of lightemitted by the laser? Answer in units of nanometers (nm), where 1 nm = 10-9m.

  1. An FM radio wave has a wavelength of. A gamma ray has a wavelength of. What is the ratio of their energies,?

You will have to answer this question using scientific notation. However, you will need to replace "x10" with an "e".

Example:

2x104would be entered as 2e4

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