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Chemistry, 03.12.2020 16:20 saraaaaaaaa20

A concave mirror of focal length 20 cm forms an image twice the size of the object. For the virtual position of the object, the position of the object will be at:
(a) 25 cm
(b) 40 cm
(c) -10 cm
(d) At infinity

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A concave mirror of focal length 20 cm forms an image twice the size of the object. For the virtual...
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