A student observes that when an object is placed at 15 cm from a mirror, its image forms at 30 cm on the same side. What is the focal length of the mirror?
Subject: General Awareness | Topic: Science | Difficulty: MEDIUM
Options
- (A) -10 cm
- (B) -5 cm
- (C) -8 cm
- (D) -12 cm
Verified Answer
Option (A): -10 cm
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