As we move a body away from the torch light towards the screen, its image size _______.

increases

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decreases

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increases then decreases

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remains same

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Solution

The correct option is B
decreases

When the object is nearer to the torch, size of the shadow becomes larger as more amount of light is blocked. As it gets further away from the torch light, the amount of light blocked decreases, thus. shadow size decreases.

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As we move a body away from the torch light towards the screen, its image size _______.

The correct option is B decreases When the object is nearer to the torch, size of the shadow becomes larger as more amount of light is blocked. As it gets further away from the torch light, the amount of light blocked decreases, thus. shadow size decreases.

The correct option is B
decreases

When the object is nearer to the torch, size of the shadow becomes larger as more amount of light is blocked. As it gets further away from the torch light, the amount of light blocked decreases, thus. shadow size decreases.