The head mirror used by ENT doctors is (1) Concave (2) Convex (3) Plane (4) Plano-convex Answer : Concave...
Which type of mirror is used in the head lights of vehicles ? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror Answer : Concave mirror...
A rear-view mirror for driving is (1) plain (2) concave (3) convex (4) inverted Answer : convex...
Vehicles use _____ to see the objects coming from behind. (1) Concave lens (2) Convex lens (3) Convex mirror (4) Concave mirror Answer : Convex lens...
Shaving mirror is (1) Convex (2) Concave (3) Plane (4) Parabolic Answer : Concave...
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