Question

when an object is placed at a distance of 50 cm from a concave spherical mirror,the magnification produced is -1/2 .where should the object be placed to get a magnification of -1/5​

Answer 1

Answer:

when an object is placed at a distance of 50 cm from a concave spherical mirror,the magnification produced is -1/2 .where should the object be placed to get a magnification of -1/5​

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Step-by-step explanation:

Answer 2

Answer:

Given:

Focal length of concave mirror, f = -20 cm

Distance of object from the mirror, u = -10 cm

use formula, 1/v + 1/u = 1/f

or, 1/v = 1/f - 1/u

or, 1/v = 1/-20 - 1/-10

or, 1/v = -1/20 + 1/10 = 1/20

or, v = +20cm

Step-by-step explanation:

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