Question

The frequency of a wave of light is 12 x 10^14 sec-1. The wave number associated with this light
1) 5x10^-7m 2) 4 x 10^-8 cm^-1
3) 2 x 10^-7 m 4) 4 x 10^4 cm^-1​

Answer 1

Explanation:

We know that, λ=

ν

c

λ=

12×10

14

3×10

8

=

4

1

×10

−6

m

Wave number (

ν

) is the reciprocal of wavelength. That is,

ν

=

λ

1

ν

=4×10

6

m

−1

=4×10

4

cm

−1

Answer By

Momin Sajjad (momin.web.com)