Arrange IR rays, Radio waves, X-rays in the ascending order of wavelength:

Options

A. IR rays, Radio waves, X-rays
B. Radio waves, IR rays, X-rays
C. X-rays, Radio waves IR rays
D. X-rays IR rays, Radio waves

Answer

D

Explanation

The wavelength of X-rays is 0.1 nm to 10 nm, while that of IR rays extends from 700 nm to 1 mm and that of radiowaves is from 1 mm to 1 km.