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Q.

Is it true that the formula for magnification produced by a concave mirror in terms of object distance and image distance is $m = - \frac{v}{u}$ .

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a

True

b

False

answer is A.

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Detailed Solution

The above statement is True.
The ratio of the height of an image to that of the height of an object is known as magnification.
Magnification produced by a spherical mirror is the extent to which the image of an object can be magnified as compared to the size of the object. It is represented as the ratio of the height of the image to the height of the object.

m = \frac{height of the image ({h^{'}}^{'})}{height of the object (h)}

m = \frac{h^{'}}{h}

Question Image

Moreover, magnification of a spherical mirror can also be defined as the ratio of image distance to the object distance and is formulated as:

m = - \frac{v}{u}

Where

u = distance

of the object from the mirror

v = distance

of the image from the mirror

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