Question

Statement I: Lesser the power of the lens, lesser is the convergence or divergence of light.

Statement II: Lesser the power, more is the focal length.

• A. Statement I and II are correct, but statement II is not the reason for statement I.
• B. Statement I is incorrect, but statement II is correct.
• C. Statement I is correct, but statement II is incorrect.
• D. Both statements are correct, and statement II is the reason for statement I.

Answer 1

The correct option is D

Both statements are correct, and statement II is the reason for statement I.

Power of lens is defined as:
$P=\frac{1}{f}$
where:
$f:$ Focal length

It gives a measure of convergence or divergence produced by the lens. Lesser the power, more is the focal length and lesser is the divergence or convergence of a lens.