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A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that its end closer to the pole is 20 cm away from the mirror. The length of the image is :-(1)2.5 cm(2)5 cm(3)10 cm(4)15 cm |
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Answer» A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that its end closer to the pole is 20 cm away from the mirror. The length of the image is :- (1)2.5 cm (2)5 cm (3)10 cm (4)15 cm |
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