Question

What do you mean by red shift?

Solution

The spectral lines are observed to shift towards the higher wavelength when the stars are moving away from the earth. That is, the stars are moving towards the red part of the spectrum due to doppler effect.
This is called as red shift.

Some More Questions From Mechanical Properties of Fluids Chapter

What is wave?

Is it logical to say that wave motion is a process of propagation of mass?

What is common property of all types of waves?

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Mechanical Properties Of Fluids

What do you mean by red shift?

Some More Questions From Mechanical Properties of Fluids Chapter

What is wave?

Is it logical to say that wave motion is a process of propagation of mass?

What is common property of all types of waves?

What are different types of wave motions?

Define transverse wave motion.

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?

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