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Recent questions tagged telegram-1602
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(chatquestion)...A object 10 cm high is placed at the principal focus of a concave lens of focal length 20 cm. Find the size, position and nature of the image. (C.B.S.E.) [Ans. 5 cm, - 10 cm, erect]
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telegram-1602
asked
Apr 5, 2020
by
balaji.thirumalai
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