MHT CET 2026 Physics question

To improve the resolving power of a compound microscope we should

(A)decrease the diameter of the objective lens.
(B)decrease the focal length of the eye-piece.
(C)increase the refractive index of the medium between the object and objective lens.Correct
(D)increase the wavelength of light.

Answer: (C)

Solution

The resolving power of a microscope is , where is the refractive index of the medium between the object and the objective, is the half-angle subtended by the objective at the object and is the wavelength. To increase it we must

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Question ID VK-101439