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What is a spherical mirror?...

What is a spherical mirror?

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Point S^(') is the image of a point source of light S in a spherical mirror whose optical axise is N_(1)N_(2) (shown in Figure). Find by construction the position of the center of the mirror and its focus.

AB is the principal axis of a spherical mirror. I is the point image corresponding to a point object O. Choose the correct options.

Knowledge Check

  • In a reflecting astronomical telescope, if the objetcive (a spherical mirror) is replaced by a parabolic mirror of the same focal length and aperture, then

    A
    the final image will be erect
    B
    a large image will be obtained
    C
    the telescope will gather more light
    D
    spherical aberration will be absent

  • For an incident ray directed towards centreof curvature of a spherical mirror, the reflected ray:

    A
    retraces its path
    B
    passes through the focus
    C
    passes through the pole
    D
    becomes parallel to the principal axis

    • Similar Questions

    Explore conceptually related problems

    On the axis of a spherical mirror of focal length f a short linear object of length L lies on the axis at a distance mu from the mirror. Its image has an axial length L' equal to

    The positions of the object O (real or virtual) and the image I (real or virtual) with respect to the optical axis of a spherical mirror is shown. Then select the possible mirror and its position to realise it. .

    Define principal axis of a spherical mirror.

    What type of spherical mirror can be used to obtain a real image of an object? Does the mirror mentioned in part (b) form real image for all locations of the object?

    The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

    The geometric centre of a spherical mirror is called

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