If the lens diameter is doubled, what happens to the resolvable angle of images produced at fixed wavelength?
A)The angle decreases by a factor of two.
B)The angle increases by a factor of two.
C)The angle decreases by a factor of four.
D)The angle increases by a factor of four.
E)The angle stays the same.

Question

Quizplus · Accepted Answer

The resolvable angle is inversely proportional to the diameter of the lens. Doubling the diameter decreases the angle by a factor of two.

If the Lens Diameter Is Doubled, What Happens to the Resolvable