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Statement I : A concave mirror is prefer...

Statement I : A concave mirror is preferred to a plane mirror for shaving.
Statement II : When a man keep face between pole and focus of mirror, an erect and highly magnified virtual image is formed.

A

Statement I is true, statement II is true, statement II is a correct explanation for statement I .

B

Statement I is true, statement II is true, statement II is not a correct explanation for statement I.

C

Statement I is true, statement II is false.

D

Statement I is false, statement II is true.

Text Solution

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The correct Answer is:
A
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Use the mirror equation to deduce that : an object between the pole and focus of a concave mirror produces a virtual and enlarged image.

Use the mirror equation to deduce that: (a) an object placed between f and 2f of a concave mirror produces a real image beyond 2f. (b) a convex mirror always produces a virtual image independent of the location of the object. (c) the virtual image produced by a convex mirror is always diminished in size and is located between the focus and the pole. (d) an object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.

Knowledge Check

  • A concave mirror has radius of curvature r and focal length f. An object is placed at a distance x from the mirror. The condition under which a magnified erect image will be formed is

    A
    x = f
    B
    `u gt r`
    C
    `f lt u lt r`
    D
    `0 lt u lt f`

  • Statement I : A virtual image can not be directly photographed. Statement II : Virtual image can produced by using convex mirror.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I .
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true.

  • A concave mirror has radius of curvature r and focal length f. An object is placed at a distance u from the mirror. The condition under which a virtual image will be formed is

    A
    u = f
    B
    `u gt r`
    C
    `f lt u lt r`
    D
    `0 lt u lt f`

    • Similar Questions

    Explore conceptually related problems

    The secondary focus of a concave mirror is a fixed point. Is this statement correct ?

    An object is placed in front of a concave mirror, a three times magnified image is formed. If the object is moved through a distance 20 cm towards the mirror, a virtual image of same magnification is formed. What is the focal length of the mirror?

    The principal focus of a concave mirror is a fixed point. Is this statement correct ?

    If an object is placed between the pole and the focus of a concave mirror, will the size of the image be magnified with respect to the size of the object?

    A point source of light is placed at the midpoint of two concave mirror (facing each other) of focal length f , What should be the magnitude of the distance of separation d between the two mirrors for a single image to be formed?

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