JEE Main 2022 Physics question

A microscope was initially placed in air (refractive index 1). It is then immersed in oil (refractive index 2). For a light whose wavelength in air is , calculate the change of microscope's resolving power due to oil and choose the correct option.

(1)Resolving power will be 1/4 in the oil than it was in the air.
(2)Resolving power will be twice in the oil than it was in the air.
(3)Resolving power will be four times in the oil than it was in the air.Correct
(4)Resolving power will be 1/2 in the oil than it was in the air.

Answer: (3)

Solution

The resolving power of a microscope is , with the wavelength in air. Since the wavelength in the oil becomes , the ratio of the resolving powers is $/ =

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-034371