Question

in which case concave mirror produces magnification -1​

Answer 1

Answer:

A concave mirror produces a magnification of +4 when the object is placed between the focus and the pole. This shows that the image is erect and virtual. An erect and virtual image is formed in the case of the concave mirror only when the object is kept between the focus and pole.

Explanation:

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Answer 2

a concave mirror produces a 3 times magnified real image of a object placed at 10 cm in front of it.

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