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) $ 1\mu m $
B) $ 30\mu m $
C) $ 100\mu m $
D) $ 300\mu m $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ RP=\frac{1.22\lambda }{2\mu \sin \theta }=\frac{1.22\times (500\times {{10}^{-9}}m)}{2\times 1\times ( \frac{1}{100} )} $ Or $ RP=3.05\times {{10}^{-5}}m=30\mu m $
