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Question

Physics Question on Wave optics

A person wants to see two pillars distant 11 km, separately. The distance between the pillars must be approximately.

A

3m

B

1m

C

0.25 m

D

0.5 m

Answer

3m

Explanation

Solution

Resolving power o f eye = (160)∘\left( \frac{1}{60} \right)^\circ 160×π180=d11000\frac{1}{60} \times \frac{\pi}{180} = \frac{d}{11000}