Science, asked by raju4540, 1 year ago

a concave lens has focal length of 20cm. at what distance should the object from the object from the lens be placed so that it forms an image at 10cm from the lens​

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Answered by mohan6856
2

a concave lens has focal length of 20cm. at what distance should the object from the object from the lens be placed so that it forms an image at 10cm from the lens

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