Question

The pupil in the human eye ranges in diameter from 1.5 mm in bright light to 8 mm in dim light.
Assuming your vision is limited by diffraction and using a light of a 500 nm wavelength, if you are standing in dim light what is the separation between two objects which you can just resolve at a distance of:
(a) 1.0m
(d) 1000m

Answer 1

Answer:

a

Explanation:

Answer 2

Answer:

apply mirror formula

1/f=1/v + 1/u