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Q:

If the reflection formed in the mirror is always perpendicular to the object in shape, is the mirror?

  • 1
    concave
  • 2
    convex
  • 3
    level
  • 4
    None of these
  • Show Answer
  • Workspace

Answer : 3. "level"
Explanation :

When the object moves with speed u towards (or away) from the plane mirror then image also moves toward (or away) with speed u. But relative speed of image w.r.t. object is 2u.

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