Q. Which among the given parts of the sunlight makes the solar cooker hot
✅ Correct Answer: (C)
Infra red
Explanation:
Solar cookers work by trapping heat energy from the sun, primarily from infrared (IR) radiation.
- Infrared rays carry heat energy, which gets absorbed by the black surface inside the cooker, raising the temperature and cooking the food.
Why are the other options incorrect?
- (A) Red Light → ❌ Visible light (including red) is not responsible for heating.
- (B) Ultraviolet (UV) → ❌ UV rays have high energy but do not contribute significantly to heat.
- (D) Cosmic Rays → ❌ Cosmic rays are high-energy particles from space, unrelated to solar heating.
Thus, infrared radiation is responsible for making the solar cooker hot.
Explanation by: Mr. Dubey
Solar cookers work by trapping heat energy from the sun, primarily from infrared (IR) radiation.
- Infrared rays carry heat energy, which gets absorbed by the black surface inside the cooker, raising the temperature and cooking the food.
Why are the other options incorrect?
- (A) Red Light → ❌ Visible light (including red) is not responsible for heating.
- (B) Ultraviolet (UV) → ❌ UV rays have high energy but do not contribute significantly to heat.
- (D) Cosmic Rays → ❌ Cosmic rays are high-energy particles from space, unrelated to solar heating.
Thus, infrared radiation is responsible for making the solar cooker hot.