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Minima in Diffraction

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apparent wavelength of light coming from star moving away from earthis 0.02%more than its actual wavelength. velocity of star i

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Q. The apparent wavelength of light from a star moving away from the earth is 0.02% more than actual wavelength. What is the velocity of the star.

Q. The earth is moving towards a fixed star with a velocity of

30 k m s^{- 1}

. An observer on the earth observes a shift of

0.58 A^{0}

in the wavelength of light coming from the star. The actual wavelength of light emitted by the star is then

Q. The wavelength of light observed on the earth from a moving star is found to decrease by

0.05

%. Relative to earth the star is

Q. Earth is moving towards a stationary star with a velocity

100 {kms}^{- 1}

. If the wavelength of light emitted by the star is

5000 A^{o}

, then the apparent changes in wavelength observed by the observer on earth will be

Q. The wavelength of spectral line coming from a distant star shifts from

600 n m

600.1 n m

. The velocity of the star relative to earth is

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