Question

Calculate the wavelength,
frequency and wavenumber
of light whose period is 4*10^-8 sec??​

Answer 1

Explanation:

The frequency of the light wave is

period

1

=

2.0×10

−10

s

1

=5×10

9

/s.

(ii) The wavelength of light wave is

ν

c

=

5×10

9

/s

3×10

8

m/s

=6.0×10

−2

m.

(iii) The wave number of light wave is

ν

ˉ

=

λ

1

=

6.0×10

−2

1

=16.66/m.

How sati