Question

Find the position of the image of an object placed at a distance of 25cm in front of a concave mirror of the focal length 50cm.
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Answer 1

Answer:

GIven:

U = -25 ( u is generally taken as negative)

F = -50 ( f is always - of a concave mirror)

Using mirror formula,

1/f = 1/u + 1/ v

1/-50 = 1/-25 + 1/v

1/v = 1/-50 + 1/25

1/v = -1 + 2/ 50 ( taking L.C.M.)

1/v = 1/50

v = 50cm

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