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Waves and Optics

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Multiple Choice

In which of the following is/are convex mirror not used?(i) Headlights of a car
(ii) Side/rear-view mirror of a vehicle
(iii) Solar furnace
(iv) Dentist’s mirror

  1. Only (i) and (iv)
  2. Only (iii) and (iv)
  3. Only (i), (ii) and (iv)
  4. All of these
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