Question

An object of size 5.0 cm is placed at 30 cm in front of a concave mirror of focal length 15cm.At what distance from the mirror should a screen be placed ,so that a sharp focussedimage can be obtained ? Find the position size and the nature of the image. *
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Answer 1

Answer:

We would have to place the screen at 30 cm in front of the mirror so as to obtain a sharp image of the object . The size of the object would be same as the object(i.e.5.0 cm) and the image formed is real and inverted.