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Question

A thin convex lens having aperture diameter d forms an image of intensity I. Now the central part of the aperture upto diameter d2 is blocked by an opaque paper. The image intensity will

द्वारक व्यास d वाला एक पतला उत्तल लेन्स I तीव्रता का एक प्रतिबिम्ब निर्मित करता है। अब द्वारक के केन्द्रीय भाग को d2 व्यास तक किसी अपारदर्शी कागज द्वारा ढका जाता है। प्रतिबिम्ब की तीव्रता

A
Decrease

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B
Increase

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C
Remain same

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D
May increase or decrease

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Solution

The correct option is A Decrease

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Solution

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