The image produced by a concave mirror is one- quarter the size of object is moved 5 cm closer to the mirror…..

Q.The image produced by a concave mirror is one- quarter the size of object , if moved 5 cm closer to the mirror, the image will only be half the size of the object. The focal length of mirror is

(a) f = 5.0 cm

(b) f = 2.5 cm

(c) f = 7.5 cm

(d) f = 10 cm

Ans: B

Author: Rajesh Jha

QuantumStudy.com

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