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in Physics by (121k points)
An object is placed at a distance of 15cm from a convex lenx of focal length 10cm. On the other side of the lens, a convex mirror is placed at its focus such that the image formed by the combination coincides with the object itself. The focal length of the convex mirror is
A. 20 cm
B. 10 cm
C. 15 cm
D. 30 cm

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1 Answer

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by (121k points)
Correct Answer - B

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