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प्रश्न
An object is kept on the principal axis of a concave mirror of focal length 10 cm. at a distance of 15
cm from its pole. The image formed by the mirror is:
(a) Virtual and magnified
(b) Virtual and diminished
(c) Real and magnified
(d) Real and diminished
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उत्तर
Real and magnified
`1/u + 1/v =1/f`
u = -15, f = -10
`:. v = -30`
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