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B The tangent and perpendicular of a mirror

  1. May 10, 2017 #1
    The tangent passes through just one point
    Now i can draw it such that the angle of incidence is always 0 and incident angle is always 90
    Then no image will be formed.
    Why does this not happen??
  2. jcsd
  3. May 10, 2017 #2
    A tangent passes through just one point of a curved line or surface, but does not cross it at that point. It doesn't sound as though you are talking about any curved surfaces.
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