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Why are the mirrors fitted on the outside of cars convex?

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Question

Why are the mirrors fitted on the outside of cars convex? 

Short/Brief Note
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Solution

  1. The image formed by a convex mirror is small and straight.
  2. This image remains straightforward; But as we move the mirror further away from the object, the image becomes smaller.
  3. As a result, we see all the surrounding images in the mirror.
  4. The use of convex mirrors in the outside of the vehicle gives the driver a straight, narrow and clear image of the vehicles behind the vehicle.
  5. Therefore, the mirror fitted on the outside of the vehicle is convex.
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Chapter 11: Reflection of Light - Exercise [Page 127]

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Balbharati Science and Technology [English] Standard 9 Maharashtra State
Chapter 11 Reflection of Light
Exercise | Q 1. d. | Page 127

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