Question

If numerical aperture of a microscope is increased then its

• A. resolving power remains constant
• B. resolving power becomes zero
• C. limit of resolution is decreased
• D. limit of resolution is increased

Answer 1

The correct option is D limit of resolution is increased

On increasing the numerical aperture of the microscope,more light rays are gathered that were diffracted at larger angles and hence its limit of resolution increases.

Hence, answer is option-(D).