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Assertion : infrared radiation plays an ...

Assertion : infrared radiation plays an important role in maintaining the average temperature of earth
Reason : Infrared radiations are sometimes referred to as heat waves.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the assertion and the reason provided, and then determine their validity and relationship. ### Step 1: Analyze the Assertion The assertion states that "infrared radiation plays an important role in maintaining the average temperature of the Earth." - **Explanation**: Infrared radiation is emitted by the Earth after absorbing sunlight. During the day, the Earth absorbs solar energy and warms up. At night, it re-emits this energy in the form of infrared radiation. This process is essential for maintaining the Earth's average temperature, as it prevents the temperature from dropping too low at night. ### Step 2: Analyze the Reason The reason states that "Infrared radiations are sometimes referred to as heat waves." - **Explanation**: Infrared radiation is indeed associated with heat, as it can cause warming when absorbed by materials. The term "heat waves" can refer to the sensation of heat that infrared radiation can produce, but it is not a scientific term that explains the role of infrared radiation in temperature maintenance. ### Step 3: Determine the Truth of Each Statement - **Assertion**: True. Infrared radiation does play a crucial role in maintaining the Earth's temperature. - **Reason**: True. Infrared radiation can be referred to as heat waves, but this does not explain why the assertion is true. ### Step 4: Determine the Relationship Between Assertion and Reason Since both the assertion and reason are true, but the reason does not correctly explain the assertion, we can conclude that: - The correct option is: **Both assertion and reason are true, but reason is not the correct explanation of assertion.** ### Final Answer The correct answer is option B. ---
To solve the question, we need to analyze the assertion and the reason provided, and then determine their validity and relationship. ### Step 1: Analyze the Assertion The assertion states that "infrared radiation plays an important role in maintaining the average temperature of the Earth." - **Explanation**: Infrared radiation is emitted by the Earth after absorbing sunlight. During the day, the Earth absorbs solar energy and warms up. At night, it re-emits this energy in the form of infrared radiation. This process is essential for maintaining the Earth's average temperature, as it prevents the temperature from dropping too low at night. ### Step 2: Analyze the Reason ...
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