Question

17.
The nature, position and size of the image formed by a concave mirror
depends on the position of the object in relation to points P, F and C. The
image formed is real for somepositions of the object. It is found to be a
virtual image for acertain otherposition. The image is either magnified,
reduced or has the same size, depending on the position of the object.
(a) It is desired to obtain an erect image of an object, using a concave
mirror of focal length 20 cm.​

Answer 1

Answer:

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