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Recent questions tagged telegram-1576
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(chatquestion)...Size of the image of the sun. The sun subtends an angle of 0-5° on earth. What should be the radius of curvature of the mirror which produces an image of the sun 2 cm in diameter ? [Ans. 458 cm]
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telegram-1576
asked
Mar 31, 2020
by
balaji.thirumalai
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