Question

calculate frequency of infrared radiations having wavelength 3×10^8 nm​

Answer 1

Answer:

The answer is 10^9  Hz.

Explanation:

The formula of frequency is

v = c / λ

Here v is the frequency, c is the speed of light and its value is  3×10^8  m/s and λ is the wavelength.

Given data :

The wavelength of infrared radiations =  3×10^8 nm​

v = c / λ  

v = 3×10^8  m/s /3×10^8 x 10-9 m

v = 10^9  Hz  

the frequecy of the wavelegth of radiations is 10^9 Hz.