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1.AnswerthefollowingQuestions:12 The object is placed at 10cm from the optical centre of the lens having focal length 12em findimage distance. |
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Answer» For a lens, the lens formula is given as : 1/f = 1/v - 1/u given, f = focal length = 12 cm u = object distance = 10 cm v = image distance = ? hence, 1/12 = 1/v - 1/10 => 1/v = 1/12 + 1/10 => 1/v = 22/120 => v = 120/22 = 5.45 cm Hence the image will be formed at a distance of 5.45 cm. |
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