Question

An object is placed at a height of 10cm on the principal axis of a concave mirror of focal length f .If the object is placed at a distance of 3f then find the height of mirror​

Answer 1

Answer:

According to the rules of sign convention,(a) distances are measured from the mirror.(b) distances measured along the direction of incident rays are taken positive and (c) distances measured opposite to the direction of incident rays are taken negative.

Hence,u=−100cm,h=10cm and f=10cm

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Explanation:

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