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NEETPhysicsMechanical Properties of Fluids

Assertion (A): The upper surface of the wing of an aeroplane is made convex and the lower surface is made concave. Reason (R): The air currents at the top have smaller velocity and thus less pressure at the bottom than at the top.

Options

  1. ABoth A and R are true and R is a correct explanation for A
  2. BBoth A and R are true but R is not a correct explanation for A
  3. CA is true, R is false
  4. DA is false, R is false

Correct answer

C. A is true, R is false

Step-by-step solution

The upper surface of wings of an aeroplane are concern as the air at top will have greater velocity than that at bottom making the pressure at top low and at bottom high making the lift possible.

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