___ is the ratio of the height of the image to the height of the object.

Curvature

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Focus

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Magnification

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Focal length

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Solution

The correct option is C
Magnification

Magnification is the ratio of the height of the image $(h_{i})$ to the height of an object $(h_{o})$ . It shows how many times the image is as large as the object.

If the distance of the object is taken as $u$ and that of the image as $v$ , then:

Magnification of a lens, $m = \frac{h_{i}}{h_{o}} = \frac{v}{u}$

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Similar questions

The ratio between image height to the object height is called:

Q. The magnification produced by a mirror is the ratio of the height of the image to the height of the object.

Q. Ratio of height of the image to the height of the object is called the ___ of the spherical mirror.

Q. State whether true or false :

The magnification produced by a spherical mirror is the ratio of the height of the image to the height of the object.

Relate the image distance ( $v$ ), object distance ( $u$ ) , image height ( $h^{^{'}}$ ) and object height ( $h$ ) to the formula of magnification $(M)$ for a mirror.

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