4. Using the following information on the frequency and wavelengths of the colors of light, determine

the energy of the photons of light emitted by each crystal. Fill in the answers on the table below. You

will need the formula E = hv where h = Planck’s constant = 6.626 x 10-34 Js and v=frequency.

Color

Frequency (Hz)

Energy (J) of photon of light emitted

Red

4.5 x 1014 Hz

X 6.626 x 10-34 JS = 3.0 x 10-19 Joules

Orange

5.0 x 1014 Hz

X 6.626 x 10-34 JS =

Yellow

5.2 x 1014 Hz

Green

5.6 x 1014 Hz

Blue

6.6 x 1014 Hz

Violet

7.3 x 1014 Hz