Question:medium
Which of the following rays coming from the Sun plays an important role in maintaining the Earth’s warmth?
Which of the following rays coming from the Sun plays an important role in maintaining the Earth’s warmth?
Show Hint
Infrared rays, which are emitted by the Sun, are responsible for heating the Earth's surface. These rays have longer wavelengths than visible light and are essential in maintaining the Earth's warmth through the greenhouse effect.
Updated On: Feb 9, 2026
- Infrared rays
- \( \gamma \) rays
- UV rays
- Visible light rays
Show Solution
The Correct Option is A
Solution and Explanation
The Sun's electromagnetic radiation spectrum includes visible light, ultraviolet (UV) rays, and infrared rays. Of these, infrared rays are the principal source of Earth's warmth. Infrared rays are absorbed by Earth and then re-emitted as heat, which maintains the planet's temperature, a phenomenon known as the greenhouse effect. While visible light provides illumination and UV rays have effects like sunburn, infrared radiation is crucial for heating Earth's surface and atmosphere. Therefore, option (A), Infrared rays, is the correct answer.
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