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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