Question

Calculate the wavelength frequency and wave number of a light wave whose period is 3.0x10 -10 s

Answer 1

Answer

Frequency=1/Time period

=1/3x10 -10

=3.3x10^9 Hz

Wavelength=c/frequency

(where c=3 x 10^8)

=3x10^8/3.3x10^9

=0.9x10^-1 m

Wave Number=1/Wave length

=1/0.09

=11.11 m-1