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Nature of the graph between 1//u and 1//...

Nature of the graph between `1//u` and `1//v` for a convex lens, where `u` is the distance of the object and `v` is that of image is

A

Straight line

B

Parabola

C

Ellipse

D

Hyperbola.

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Knowledge Check

  • Where should an object be placed in front of a convex lens to get a real image of the size of the object ?

    A
    At the principal focus of the lens
    B
    At twice the focal length
    C
    At infinity
    D
    Between the optical centre of the lens and its principal focus

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    A
    At the principal focus of the lens
    B
    At twice of focal length
    C
    At infinity
    D
    Between the optical centre of the lens and its principal focus.

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