Physics
Physics, 18.10.2019 06:00, mathmatics9898

Ection (b): spherical mirror
the image (of a real object) formed by a concave mirror is twice the size of the object. the focal length of the
mirror is 20 cm. the distance of the object from the mirror is (are)
(a) 10 cm
(b) 30 cm
(c) 25 cm
(d) 15 cm​

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Ection (b): spherical mirror
the image (of a real object) formed by a concave mirror is twice...

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