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A point object is placed at a distance o...

A point object is placed at a distance of 10cm and its real image is formed at a distance of 20 cm from a concave mirror. If the object is moved by 0.1 cm towards the mirror, the images will shift by about

A

0.4 cm away from the mirror

B

0.4 cm towards the mirror

C

0.8 cm from the mirror

D

0.8 cm towards the mirror

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • An object 2.5 cm high is placed at a distance of 10 cm from a concave mirror of radius of curvature 30 cm. The size of the image is

    A
    9.2m
    B
    10.5m
    C
    5.6m
    D
    7.5m

  • A concave mirror forms an image of sun at a distance of 12 cm from it .

    A
    The radius of curvature of this mirror is 6 cm
    B
    To use it as a shaving mirror, it must be held at a distance of 8 - 10 cm from the face
    C
    If an object is kept at a distance of 12 cm from it, the image formed will be same size as the object
    D
    All the above .

  • A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form at:

    A
    infinity
    B
    focus
    C
    pole
    D
    10 cm behind the mirror

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