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Light energy emitted by star is due to...

Light energy emitted by star is due to

A

breaking of nuclei

B

joining of nuclei

C

burning of nuclei

D

reflection of solar light

Text Solution

Verified by Experts

The correct Answer is:
b
Light energy emitted by stars is due to fusion of light nuclei
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Knowledge Check

  • If the wavelength of light emitted by a star is shifted towards red end, then the star is -

    A
    going away from earth
    B
    going away from earth
    C
    stationary
    D
    none of the above

  • If the shift of wavelength of light emitted by a star is towards viloet, then this shows that star is

    A
    stationary
    B
    moving towards earth
    C
    moving away from earth
    D
    Information is incomplete

  • A star is receding from earth with a velocity 3 xx 10^(6) m//s . If the actual wavelength of the light emitted by the star is lambda and Delta lambda is the displacement in wavelength as observed on earth then Delta lambda : lambda is -

    A
    `1 : 3 xx 10^(6)`
    B
    ` 1 : 10^(2)`
    C
    `10^(3) : 1`
    D
    `10^(2) : 1`