Optics Question 473

Question: Assuming human pupil to have a radius of 0.25 cm and a comfortable viewing distance of 25 cm, the minimum separation between two objects that human eye can resolve at 500 nm wavelength is

Options:

A) 1μm

B) 30μm

C) 100μm

D) 300μm

Show Answer

Answer:

Correct Answer: B

Solution:

[b] RP=1.22λ2μsinθ=1.22×(500×109m)2×1×(1100) Or RP=3.05×105m=30μm



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