Question

Which of the following types of radiations is used in heating of a solar cooker?

• A. Visible light
• B. Infrared rays
• C. Ultraviolet rays
• D. none of these

Answer 1

The correct option is B

Infrared rays

Explanation for the correct option:

Option (B) - Infrared rays

1. The solar cooker uses no fuel.
2. Cooking is hygienic and nutritious in a solar cooker.
3. Infrared rays are rays that we get from the sun.
4. The energy of the infrared rays from the sun is used in the solar cookers.

Explanation for the correct options:

Option(A): Visible radiation is that part of electromagnetic radiation, which is visible to our naked eye. It ranges from $300\mathrm{to}700\mathrm{nm}$.

Option(C): UV radiation is a type of radiation that is non-ionizing in nature and emitted by the sun. Some other sources are halogens, lasers, etc

Hence, the correct answer is an option (B).