Physics, asked by SAVIVERMA4906, 1 year ago

an object is placed 20cm away from a concave mirror and it is within the focal length of the mirror.If the mirror is changed to a plane mirror, the image moves 15 cm closer to the mirror.focal of the concave mirror is

Answers

Answered by raghav0723
2
focal length will be 5 centimetre .
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