A 2 GHz radio signal is detected from a galaxy as 0.86GHz. Estimate the relative velocity.
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A: I have stated the Doppler effect formula We can modify the formula according to our requirements.
- Like all waves light waves also get Doppler shifted. In the case of light waves, the Doppler shift only depends on the relative velocity.
- When the source is moving towards the observer frequency will increase and when it is moving away frequency will decrease.
- The Doppler shift in frequency for light waves is given by,
Here f is the observed frequency, f0 is the emitted frequency, v is the relative velocity, and c is the speed of light.
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