How will the magnitude of magnification change if an object placed at the centre of curvature is moved towards the focus?

decreases

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increases

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remains constant

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magnification reaches infinity

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Solution

The correct option is B
increases

As an object moves towards the focus, the height of the image increases. Since, magnification = $\frac{h e i g h t o f i m a g e}{h e i g h t o f o b j e c t}$ .

As the height of the image increases, the magnitude of magnification increases.

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