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Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size.

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asked Dec 30, 2017 in Physics by Rohit Singh (61,782 points) ● 36 ● 143 ● 458

Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?

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answered Dec 30, 2017 by Rohit Singh (61,782 points) ● 36 ● 143 ● 458
 
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