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Winds and Pressure Difference

Two pieces of...

Question

Two pieces of papers are held parallel. Air is blown with a high speed in between them. Which of the following phenomena will be observed?

A

The papers will move away from each other.

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B

The papers will move towards each other.

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C

The papers will stay at their position.

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D

The papers will catch fire due to increase in air temperature.

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Solution

The correct option is C The papers will move towards each other.
It seems amazing that the two sheets of paper move closer together, the pressure is reduced where the air is moving quickly. This is called the Bernoulli principle.

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