2001
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15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal
length 18 cm. At what distance from the mirror should a screen be placed, so that
a sharp focussed image can be obtained? Find the size and the nature of the image.
16. Find the focal length of a lo
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We get the image size to be double the object size with a negative sign. This means that the image formed will be real and inverted in nature. The image formed by the object in front of a concave mirror is 14 cm in size, is 54 cm in front of the mirror and is real and inverted in nature. This is the required solution.
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