Resolving power of a telescope can be increased by (a) increasing the diameter of objective. (b) decreasing the diameter of the objective (c) increasing the distance between the objects which have to be seen through the telescope. (d) decreasing the the distance between the objects which have to be seen through the telescope.

Answer: (a). Resolving power of a telescope = (D)/(1.22λ). It grows with the objective diameter D; it does not depend on how far apart the objects are. So the answer is (a) increasing the diameter of objective.

Resolving power of a telescope can be increased by | MHT CET 2026 (12 May, Shift 1)

Q1MHT CET 2026 · 12 MAY · SHIFT 1Easy

Resolving Power

Resolving power of a telescope can be increased by

Show answer and solution

Answer: (a)

Resolving power of a telescope $= \dfrac{D}{1.22\lambda}$ .
It grows with the objective diameter $D$ ; it does not depend on how far apart the objects are.
So the answer is (a) increasing the diameter of objective.

Report a mistake

Resolving Power question from MHT CET 2026 (12 May, Shift 1)

More questions on Resolving Power