Question

Assertion (A): A wise farmer waters his field in the evening when forecast is frosty night.

Reason (R): Water has highest specific heat capacity. It releases large amount of heat energy on cooling and saves crop from frost damage.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

• Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).

• Assertion (A) is false, but Reason (R) is true.

• Assertion (A) is true, but Reason (R) is false.

Answer 1

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Explanation:

Water has the highest specific heat capacity. When water cools during a frosty night, it releases a large amount of heat energy. This keeps the field temperature from falling below 0°C and saves the crop from frost damage. Therefore, a wise farmer waters his field in the evening. R correctly explains A.