Question

object is placed at distance of 40cm from a concave lense of focal lenghth 40cm Find its position and magnificance​

Answer 1

An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20cm The image produced is

Since focal length of concave mirror given is 20cm l. Object is at 40cm distance which means it is at centre of curvature. hence, image will be formed of same size and at centre focus only but real and inverted.

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