Question

Assertion: During the explosion of a cracker, chemical energy changes into heat, light and sound energy.

Reason: Whenever one form of energy dissipates, another form of equivalent amount of energy is produced.

Options

• If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

• If both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.

• If Assertion is true, but the Reason is false.

• If Assertion is false, but the Reason is true.

Answer 1

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

Explanation:

During the explosion of a cracker, the stored chemical energy is converted into heat, light and sound energy. Therefore, the Assertion (A) is true.

According to the law of conservation of energy, when one form of energy changes, an equivalent amount of energy appears in other forms. Therefore, the Reason (R) is true and correctly explains the Assertion.

Hence, both A and R are true and R is the correct explanation of A.