Question

Which one of following have highest frequency?

• A. radio waves.
• B. infrared.
• C. ultraviolet.
• D. gamma rays.

Answer 1

The correct option is D gamma rays.

Frequency of Radio waves = $<3\times {10}^9$Hz

Frequency of infrared waves = $3\times {10}^9-3\times {10}^{11}$Hz

Frequency of ultraviolet waves = $7.5\times {10}^{14}-3\times {10}^{17}$Hz

Frequency of gamma rays = $>3\times {10}^{20}$Hz

So Gamma rays have highest frequency.