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In hydrogen spectrum the wavelength of H...

In hydrogen spectrum the wavelength of `H_(a)` line is `656nm, ` where in the spectrum of a distance galaxy `H_(a)` line wavelength is `706 nm` . Estimated speed of the galaxy with respect to earth is ,

A

`1.2 xx 10^(7) ms^(-1)`

B

`2.2 xx 10^(7) ms^(-1)`

C

`3 xx 10^(7) ms^(-1)`

D

`1.9 xx 10^(7) ms^(-1)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • In hychrogen speactrun the wavelength of H_(a) line is 656nm, where in the spactrum of a distance galaxy H_(a) line wavwlength is 706 nm . Estimated speed of the galaxy with respact to each is ,

    A
    `2 xx 10^(8) m//s`
    B
    `2 xx 10^(7) m//s`
    C
    `2 xx 10^(6) m//s`
    D
    `2 xx 10^(5) m//s`

  • In hydrogen spectrum, the wavelength of H alpha line is 656 nm, whereas in the spectrum of a distant galaxy, H alpha wqavelength is 706 nm. Estimated speed of the galaxy with respect to earth is :

    A
    `2xx10^8 m//s`
    B
    `2xx10^7 m//s`
    C
    `2xx10^6 m//s`
    D
    `2xx10^5 m//s`

  • In hydrogen spectrum, the wavelength of H alpha line is 656 nm, whereas in the spectrum of a distant galaxy, H alpha wqavelength is 706 nm. Estimated speed of the galaxy with respect to earth is :

    A
    `2xx10^8 m//s`
    B
    `2xx10^7 m//s`
    C
    `2xx10^6 m//s`
    D
    `2xx10^5 m//s`

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