How will the magnitude of magnification of a concave mirror changes, if an object placed at the centre of curvature is moved towards the Focus of the mirror?

Decreases

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Increases

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Remains constant

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Becomes infinity

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Solution

The correct option is B Increases
The image formed, is an exact replica of the object, when the object is placed at the centre of curvature of a concave mirror.

As the object moves towards the Focus, the height of the image increases.
Since, magnification = $\frac{height of image}{height of object}$ and as the height of the image increases, the magnitude of magnification will increase.

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Standard IX Physics

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