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Which of the following can make parallel...

Which of the following can make parallel beam of light when light from a point source is incident on it ?

A

Concave mirror as well as convex lens

B

Convex mirror as well as concave lens

C

Two plane mirrors placed at `90^(@)` to each other

D

Concave mirror as well as concave lens

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • Which mirror is to be used to obtain a parallel beam of light from a small lamp?

    A
    plane mirror
    B
    convex mirror
    C
    concave mirror
    D
    any one of the above.

  • When a beam of light is passed through a colloidal solution it

    A
    is reflected
    B
    is scattered
    C
    transmitted
    D
    absorbed

  • A thin film of variable thickness is illuminated by a parallel beam of white light. The colour of the film at a certain point depends upon :

    A
    the thickness of the film at that point
    B
    the refractive index of the film
    C
    the angle of incidence
    D
    all the above factors.

    • Similar Questions

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    Which mirror is to be used to obtain a parallel beam of light from a small lamp

    What is the shape of the wavefront in each of the following cases: (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth.

    Which of the following uses light as energy source ?

    The nature of the wave front associated with a parallel beam of light is

    What are coherent sources of light?

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