Question

Resolving power of a telescope will be more, if the diameter of the objective is:

• A. larger
• B. smaller
• C. it does not depend on diameter
• D. None of these

Hint:

Bigger objective lenses give sharper images.

Answer 1

The Correct Option is A

Step 1: Resolving power: \[ \text{RP} \propto \frac{D}{\lambda} \]
Step 2: Larger diameter improves resolution.