Question

In general, the wavelength of microwaves, is

• A. more than that of infrared waves
• B. more than that of radiowaves
• C. less than that of infrared waves
• D. less than that of ultraviolet waves.

Answer 1

Answer: (A)

more than that of infrared waves

Answer 2

The wavelength of microwave ranges from $1 \,mm$ (where it merges into infra-red) to $120 \,mm$ (where it merges into the radio waves). Therefore their wavelength is more than that of infra-red waves.