a 10 cm long stick is kept in the front of concave mirror focal length of 10cm in such a way that the end of the stick closest to the pole is at a distance of 20 cm what will be the focal length
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you have already given focal length in the question as 10cm ? hope you edit the question so that it can be solved
brainlybrainly60:
u can write it again here
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10 cm Because there is given focal length 10 CM & the stick is at 20 CM distance and the center of curvature is=2*focal length means 2*10 =20cm
There fore the stick is at centre of curvature
So there is no change in his size
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