Optics Question 912
Question: A boy stands straight infront 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) Convex 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 and concave mirror, because both conditions are not satisfied in plane or concave mirror. Convex mirror can meet all the requirements.
