With what speed should a galaxy move... | Modern Physics | JEE Main 2021

JEE MAIN 2021

20-07-21 S2

Question

With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength 5890 Å is observed at 5896 Å ?

Select the correct option:

A

306 km/sec

B

322 km/sec

C

296 km/sec

D

336 km/sec

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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