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Why does ray of light passing through th...

Why does ray of light passing through the centre of curvature of a concave mirror gets reflected along the same path (ray retraces its path) ?

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A ray of light passing through the curvature of a convave mirror is reflected back along the same path because it strikes the concave mirror at right angles to its surface due to which the angle of incidence and angle of reflection both are zero degree.
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Knowledge Check

  • A light ray is incident on a concave mirror which passes through the centre of curvature of a concave mirror. Which of these rays indicates the reflected ray ?

    A
    Only ray 1
    B
    Ray 1 and 2
    C
    Ray 2
    D
    Ray 3

  • A light ray is incident on a concave mirror which passes through the centre of curvature of a concave mirror. Which of these rays indicates the reflected ray ?

    A
    Only ray 1
    B
    Ray 1 and 2
    C
    Ray 2
    D
    Ray 3

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