A square card of side length 1mm is being seen through a magnifying lens of focal length 10 cm. The card is placed at a distance of9 cm from the lens. The apparent area of the card through the lens is |
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A square card of side length 1mm is being seen through a magnifying lens of focal length 10 cm. The card is placed at a distance of9 cm from the lens. The apparent area of the card through the lens is |
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a) |
b) |
c) |
d) |

1 Answer - 5876 Votes

3537

Focal length of converging lens = +10 cm = -9 cm From lens formula Magnification , 10m Apparent area of card through lens = 10 10 1 1 = 100 |