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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Understanding +4 | -1

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

View answer and explanation

Correct option: C

If assertion is true, but reason is false

Option C (If assertion is true, but reason is false) is correct because the convex upper surface and concave lower surface of an airplane wing create higher velocity and lower pressure above the wing, not the other way around.

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