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Rishi went to a palmist to show his palm. The palmist used a special lensfor this purpose.(i) State the nature of the lens and reason for its use.(ii) Where should the palmist place/hold the lens so as to have a real andmagnified image of an object?(ii) If the focal length of this lens is 10 cm and the lens is held at adistance of 5 cm from the palm, use lens formula to find the positionand size of the image. |
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Answer» ens USED by the palmist is convex lens.b)To have a real and magnified image , the OBJECT should be placed at focus of the lens or the object should be placed between focus and centre of curvature.c)f = 10 cm u = -5 cm.1/v-1/u = 1/f1/v = 1/f + 1/u1/v = 1/10 - 1/51/v = 1-2/10 1/v = -1/10v = -10 cmThe image is enlarged.m = -v/um= h'/h 10/5 = h'/5h' = 10 cmThank u.Hope this helps u.Please MARK as brainliest if you THINK it is so.@spyder. |
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