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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Application +4 | -1

A manometer connected to a close tap reads

3.5 \times {10^5}\mathrm{N}{\mathrm{m}^{ - 2}}

. When the valve is opened, the reading of manometer falls to

3.0 \times {10^5}\mathrm{N}{\mathrm{m}^{ - 2}}

, then velocity of flow of water is

View answer and explanation

Correct option: B

10\mathrm{m}{\mathrm{s}^{ - 1}}

Option B (

10\mathrm{m}{\mathrm{s}^{ - 1}}

) is correct because it is calculated using Bernoulli's theorem, relating the pressure difference to the velocity of the water flow.

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