Question

Can concave mirrors have linear magnification value negative as well as positive? give reason??

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Answer 1

Answer:

Why? Clearly, m>1, when image is enlarged, and m<1, when image is smaller in size than the object. Therefore, m is negative, when image is erect and virtual, h2 is positive, h1 is positive. ...

Answer 2

Answer:

The linear magnification of a concave mirror can be positive or negative. Why? Clearly, m>1, when image is enlarged, and m<1, when image is smaller in size than the object. ... Therefore, m is negative, when image is erect and virtual, h2 is positive, h1 is positive.