Question

Two statements are given - one labelled Assertion (A) and the other labelled Reason (R).
Assertion (A): A solar cooker cooks the meal due to the greenhouse effect.
Reason (R): The plane mirror is responsible for producing the greenhouse effect.

Options

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

• Both A and R true but R is not the correct explanation of the Assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

A solar cooker uses the greenhouse effect to cook the food. this statement is correct.

This Assertion seems to be absolutely correct, but the reason listed in the question is not the correct one as a concave mirror is used in the case of a solar cooker to heat the food to an optimal temperature.
Thus we can conclude that the assertion is correct but the reason is not correct. 
Hence, the correct answer is A is true but R is false.