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Two large plane mirrors OM and ON are ar...

Two large plane mirrors OM and ON are arranged at `150°` as shown in the figure. P is a point object and SS' is a long line perpendicular to the line OP. Find the length of the part of the line SS' on which two images of the point object P can be seen.

Text Solution

Verified by Experts

The correct Answer is:
`(2)/(sqrt(3))` m
`(AO)/(1m) = "tan"30^(@) , (OB)/(1m) = "tan"30^(@)`

`implies AO + OB = AB = 2 "tan"30^(@) = (2)/(sqrt(3))m`
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Knowledge Check

  • Electric lines of force are as shown in the figure. Then potential at point P

    A
    is zero
    B
    is not zero
    C
    may be zero also
    D
    is not defined

  • A straight line joining the object point and image point is always perpendicualr to the mirror:

    A
    if mirror is plane only
    B
    if mirror is concave only
    C
    if mirror is convex only
    D
    irrespective of the type of mirror.

  • An object O is placed in front of a plane mirror MN as shown in the diagram. A student moves her eye along the line XY to observe the image of O. identify the point(s) on the line XY where the image of O can be seen.

    A
    I,II and III only
    B
    I,III and IV only
    C
    II and III only
    D
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