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To get three images of a single obiect, ...

To get three images of a single obiect, one should have two plane mirror at an angle of

A

`60^(@)`

B

`90^(@)`

C

`120^(@)`

D

`30^(@)`

Text Solution

Verified by Experts

The number of images formed , `n = (360^(@))/(theta) - 1 or 3 = (360^(@))/(theta) - 1 theta = 90^(@)`
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Knowledge Check

  • To get three images of a single object, one should have two plane mirrors at an angle of:

    A
    `60^(@)`
    B
    `90^(@)`
    C
    `120^(@)`
    D
    `30^(@)`

  • What should be the angle between two plane mirror so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other

    A
    `60^@`
    B
    `90^@`
    C
    `120^@`
    D
    `175^@`

  • A luminous object is placed 20 cm from surface of a convex mirror and a plane mirror is set so that virtual images formed in two mirrors coincide. If plane mirror is at a distance of 12cm from object. Then focal length of convex

    A
    5cm
    B
    10cm
    C
    20cm
    D
    40cm

    • Similar Questions

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    A virtual image three times the size of the object is obtained with a concave mirror of radius of curvature 36 cm. The distance of the object from the mirror is

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