Optics Question 912
A boy stands straight in front of a mirror at a distance of $ 30cm $ away from it. He sees his erect image whose height is $ \frac{1}{5}th $ of his real height. The mirror he is using is
[MP PMT 1993]
Options:
A) Plane mirror
B) Concave mirror
C) Concave mirror
D) Plano-convex mirror
Show Answer
Answer:
Correct Answer: B
Solution:
Size is $ \frac{1}{5}. $ It can’t be plane or concave mirror, because neither satisfies both conditions. Convex mirror can meet all the requirements.
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