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Mechanical Properties of Fluids
Question
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Define mean free path.

Answer

Molecular motion is random motion and molecules travel in a straight path between two successive collisions. 

Mean free path is defined as the average distance travelled by molecules between two successive collisions.

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Some More Questions From Mechanical Properties of Fluids Chapter

Define longitudinal wave motion.

Which of the two waves - elastic waves or electromagnetic waves does need any material media for its propagation?

What is sound?

How sound is produced?

Can sound travel in vacuum?

Can two persons hear each other on the moon? Explain.

Can electromagnetic wave propagate in vacuum?

Can we listen in vacuum?

Which of the two moves forward during wave motion - particle or disturbance?

What type of wave is sound wave when it travels in air?