Physics · 2022
JEE Main · 26 June 2022, Shift 2 · Q46
For a specific wavelength 670 nm of light coming from a galaxy moving with velocity v, the observed wavelength is 670.7 nm. The value of v is:
For a specific wavelength $\displaystyle 670$ nm of light coming from a galaxy moving with velocity $\displaystyle v$, the observed wavelength is $\displaystyle 670.7$ nm .
The value of $\displaystyle v$ is :
Official answer
(3)
$\displaystyle 3.13 \times 10^5 \mathrm{~ms}^{-1}$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.