Question

Assertion: The degree of convergence or divergence of light rays is a measure of the power of the lens. 

Reason: Power of a lens is the reciprocal of focal length of the lens.

पर्याय

• 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, but Reason is not correct explanation of the Assertion.

Explanation:

Power measures the degree of convergence or divergence produced by a lens, and mathematically it is the reciprocal of focal length in metres. Both statements are true, but reciprocal definition describes the formula rather than conceptually explaining the degree of bending.