question_answer

The diameter of the objective lens of microscope makes an angle \[\beta \] at the focus of the microscope. Further, the medium between the object and the lens is an oil of refractive index n. Then the resolving power of the microscop       [JEE ONLINE 19-04-2014]

A) increases with decreasing value of n

B) increases with decreasing value of \[\beta \]

C) increases with increasing value of \[n\sin \beta \]

D) increases with increasing value of\[\frac{1}{n\sin 2\beta }\]

Correct Answer: C

Solution :

[c] Resolving power of microscope,

Wavelength of light used to illuminate the object n = Refractive index of the medium between object and objective  Angle