Optics Question 520

Question: It is desired to photograph the image of an object placed at a distance of $ 3m $ from the plane mirror. The camera which is at a distance of $ 4.5m $ from the mirror should be focussed for a distance of

[NCERT 1971]

Options:

A) $ 3m $

B) $ 4.5m $

C) $ 6m $

D) $ 7.5m $

Show Answer

Answer:

Correct Answer: D

Solution:

Fo using distance of image = 4.5 m + 3 m = 7.5 m.



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