Question

The wavelength of green light in vacuum is 5300A. Find its frequency and wave number?

Answer 1

Answer:

frequency = 5.6 × 10^14 Hz

wave number = 1.8 ×10^6 m^-1

Explanation:

wavelength = 5300×10^-10m

speed = 3×10^8 m/s

frequency = velocity of light/ wavelength

= 3× 10^8/ (5300× 10^-10)

= 5.6 × 10^14 Hz

wave number = 1/ wavelength

= 1/ 5300×10^-10

=1.8 ×10^6 m^-1