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Lens Formula

The magnifica...

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The magnifications produced by a convex lens for two different positions of an object are m1 and m2 respectively (m1>m2). If 'd' is the distance of separation between the two positions of the object then the focal length of the lens is? 1)m1m2 2)d/m1-m2 3)d12/m1-m2 4)d/m1-m2

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Q. The magnifications produced by a convex lens for two different of an object are

m_{1}

m_{2}

(m_{1} > m_{2})

. If 'd' is the distance of separation between the two positions of the object then the focal length of the lens is

Q. A lens of focal length

^{'} f^{'}

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. The lens forms two real images of object on the screen for two of its different positions, a distance

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Q. In the displacement method, a convex lens is placed in between an object and a screen.If the magnification in the two positions are,

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