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0. A rod of length 5 cm lies along the principal axis of the concave mirror of focal length 15 cm in such a way that the end of the closer to the pole is 30 cm away from it. Then the length of the image (NTSE Jharkhand, Stage-I, 2016-17)
2.75 cm
3.75 cm
4.75 cm
None of these
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