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a beam of light converges to a point on a screen S. A mirror is placed in front of the screen at a distance of 10cm from the screen. It is found that the beam now converges at apoint 20cm in front of the mirror. Find the focal length of the mirror.

a beam of light converges to a point on a screen S. A mirror is placed in front of the screen at a distance of 10cm from the screen. It is found that the beam now converges at apoint 20cm in front of the mirror. Find the focal length of the mirror.

Grade:10

1 Answers

Arun Bhaarat
29 Points
4 years ago
HELLO TRI

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