Question
Which of the following electromagnetic waves have the smallest wavelength?
γ - rays
X- rays
UV waves
infrared rays
Solution
A.
γ - rays
γ - rays wavelength range ⇒ < 10-3 nm
UV wavelength range ⇒ 400 nm to 1 nm
X -rays wavelength range ⇒ 1 nm to 10-3 nm
Infra-red rays wavelength range ⇒ 1 mm to 700 nm
So γ-rays have the smallest wavelength.
