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24/09/2021 9:14 pm
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The magnification produced by a plane mirror is +1. What does this mean?
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24/09/2021 9:17 pm
∵ m = \(\frac{h_2}{h_1}\) = +1
∴ h2 = h1
Therefore, the size of image is equal to the size of object and positive sign shows that the image is erect.