Question

An object of 7cm kept at a distance of 25cm in front of a concave mirror. The focal length the mirror is 15 cm. At what distance from the mirror should a screen be kept so as to get a clear image? what will be the size and nature of the image? ​

Answer 1

Explanation:

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Answer 2

Answer:

1/f=1/v+1/u

V is image distance and u is object distance

F is focal length

Substituting the values, 1/15=1/25+1/u

U=37.5cm

We use object distance to get magnification

M=37.5/25=1.5

The image size is 1.5×7=10.5cm

Hence, the image is real