Which mirror is used as a rear view mirror in Vehicles?

A. Parabolic

B. Convex

C. Concave

D. Plain

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  1. Mica is used in an electric iron because it is a
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  3. During thunder storm you are travelling in a car. To protect yourself from the lightning you will have…
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  23. The heating element often used in an electric iron is
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  27. Warm air will hold more water vapour than cold air because
  28. When an incident beam of light strikes the surface of a glass slab normally, the refracted beam
  29. In an electrical circuit, a fuse is connected
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