AIIMS 2018 Physics Radiation Assertion Reason Question
Assertion: Infrared radiation plays an important role in maintaining the average temperature of earth. Reason: Infrared radiations are sometimes referred to as heat waves.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The assertion is true because infrared radiation is crucial for the greenhouse effect, which helps maintain Earth's average temperature by trapping heat in the atmosphere. However, while infrared radiation is often associated with heat, referring to it as "heat waves" can be misleading, as heat waves typically describe extreme weather events rather than the continuous presence of infrared radiation. Option A is incorrect because the reason does not adequately explain the assertion. Option C is incorrect because both statements are true, and option D is incorrect since the assertion is valid.
Found an issue with this question?