Optics Question 524

Question: When a plane mirror is placed horizontally on a level ground at a distance of 60m from the foot of a tower, the top of the tower and its image in the mirror subtend an angle of 90 at the eye. The height of the tower will be

[CPMT 1984]

Options:

A) 30m

B) 60m

C) 90m

D) 120m

Show Answer

Answer:

Correct Answer: B

Solution:

tan45=h60

h=60m



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