Question

The frequency of a radiation whose time period is 1 x 10-10 s is
0 25 x 10^-12 s^-1
0 1 x 10^9s^-1
0 1 x 10^10s^-1
0 4x 10^8s^-1​

Answer 1

Answer:

(i) 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.