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The 6563 line emitted by hydrogen in a star is found to be red-shifted by 15 . Estimate the speed with which the star is receding from the Earth.
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Text solutionVerified
The red-shift in the light is given by:
Since, the change in wavelength is:
From the given values,
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Question Text | The 6563 line emitted by hydrogen in a star is found to be red-shifted by 15 . Estimate the speed with which the star is receding from the Earth. |
Updated On | Oct 13, 2023 |
Topic | Wave Optics |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 7 |
Upvotes | 636 |
Avg. Video Duration | 5 min |