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A candle flame and a screen are 180 cm apart. A lens is placed between them. For

a certain position of the lens a twice magnified clear image is obtained on the

screen. The lens is now moved away from the candle through 30 cm. To obtain

another clear image on the screen, the distance through which the screen has to

be moved is _________ and the new magnification of the image is __________.

mahadevan shankar , 13 Years ago
Grade 10
anser 1 Answers
sanatan sharma

Last Activity: 13 Years ago

the distance through which the screen has to be moved is -  15 cm towards the lens.

the magnification will be  (-5/6)

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