Optics Question 112

Question: Two point white dots are 1mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm. Approximately, what is the maximum distance at which dots can be resolved by the eye ?

[Take wavelength of light = 500 nm] [AIEEE 2005]

Options:

A) 6 m

B) 3 m

C) 5 m

D) 1 m

Show Answer

Answer:

Correct Answer: C

Solution:

1.22λa=xdd=x×a1.22λ

=1×103×3×1031.22×500×109 = 5m



NCERT Chapter Video Solution

Dual Pane