Question

Which radiation type has least penetrating power



a. gamma rays



b. microwave



c. ultraviolet rays



d. infrared rays?

Answer 1

Hello friend,

◆ Answer - Microwaves
As microwaves have lower frequency than other 3 options, its penetrating power is less.

◆ Penetrating power of Electromagnetic radiation -
- Penetrating power of electromagnetic radiation varies with its frequency.
- Higher the frequency higher is penetrability.

# Order of penetrability of EM radiations is
Gamma rays > X-ray > Ultraviolet rays > Infrared rays > Microwaves > Radiowaves

Hope this helps...

Answer 2

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b. microwave