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Question

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

A
The speed is high at the wider end and low at the narrow end
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B
The speed is low at the wider end and high at the narrow end
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C
The speed is same at both ends in a stream line flow
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D
The liquid flows with uniform velocity in the tube
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Solution

The correct option is B The speed is low at the wider end and high at the narrow end
For an incompressible liquid equation of continuity Av=constant
or, A1v
Therefore at the wider end speed will be low and at the narrow end speed will be hgih.

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