Light waves are traveling through glass. If the wavelength of some part of the light wave is 4 x 10-7 m and the frequency of that light is 5 x 1014 Hz, what is the speed of light through the glass?
8 x 10-22 m/s
1 x 107 m/s
1.25 x 1021 m/s
2 x 108 m/s
2 answers
velocity = frequency * wavelength
B is the answer