Math, asked by khanin, 1 year ago

when a bright object is placed 10 cm away from a concave mirror its real image is formed at a distance
of 40 cm from the mirror what is the focal length of the mirror

Answers

Answered by Rudhraa
1
focal length is 8 cm
Answered by aryan24281
1
focal length is 0.08 meter
khanin: its 7 m
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