MCQ- 25 ICSE Physics class 10 ch-2 Light

Class 10 - Light Quiz (Electromagnetic Spectrum)

1. Which electromagnetic wave has the shortest wavelength?

Gamma rays
Radio waves
Microwaves
Infrared rays

2. Which electromagnetic wave is used for cooking in microwave ovens?

Microwaves
X-rays
Radio waves
Gamma rays

3. Which property is common to all electromagnetic waves?

Travel at the speed of light in vacuum
Require a medium to travel
Have different speeds in vacuum
Always visible to the human eye

4. Which electromagnetic wave is used in medical imaging?

X-rays
Microwaves
Infrared rays
Radio waves

5. What is the approximate wavelength range of visible light?

400 nm - 700 nm
10 nm - 100 nm
700 nm - 1000 nm
1 nm - 10 nm

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