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Q.

A liquid is allowed to flow into a tube of truncated cone shape. Identify the correct statement from the following:

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a

The speed is same at both ends in a stream line flow.

b

The liquid flows with uniform velocity in the tube.

c

The speed is high at the wider end and high at the narrow end.

d

The speed is low at the wider end and high at the narrow end.

answer is B.

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Detailed Solution

The theorem of continuity is valid.

Therefore, A1v1ρ=A2v2ρ as the density of the liquid can be taken as uniform. 

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∴A1v1=A2v2 ⇒Smaller the area, greater the velocity

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