# The wavelength of light that has a frequency of 1.20 1013s-1 is __________ m.

The wavelength of light that has a frequency of 1.20 × 1013 s-1 is ________ m.

## Given that

Frequency of the given light = f= 1.20 × 1013 s-1

## Find out

We need to find out the wavelength (λ) of the given light.

## Formula

The relationship between frequency and wavelength for an electromagnetic wave is given by

c=f λ———–(i)

Where,

c is the velocity of light

f is the frequency of light

λ is the wavelength of the light

## Solution

To find the wavelength of the given light we will substitute the known values in equation (i) we get,

c= f λ

c= 3 X 108 ms-1

f= 1.20 × 1013 s-1

λ we need to find out

Therefore the equation becomes

3 X 108= 1.20 × 1013 x λ

λ= 3 X 10/ 1.20 × 1013

= 2.5 x 1o-5m

Hence, The wavelength of light that has a frequency of 1.20 × 1013 s-1 is 2.5 x 1o-5m