A star is going away from the earth. An observer on the earth will see the wavelength of light coming from the star

A star is moving away from the obsever on the Earth with a speed of 400 km/s. What will be the Doppler shift if the wavelength of light emitted by the star is 5800 Å ?

Earth is moving towards a fixed star with a velocity of 30 kms^(-1) . An observer on earth observes a shift of 0.58 Å in wavelength of light coming from star. What is the actual wavelength of light emitted by star ?

The apparent wavelength of light from a star moving away from earth is observed to be 0.01% more than its real wavelength. The velocity of star is

Earth is moving towards a fixed star with a velocity of 30 kms^(-1) . An oberver on earth observes a shift of 0.58 Å in wavelength of light coming from star. What is the actual wavelength of light emitted by star ?

star emitting light of wavelength 5896 Å is moving away from the earth with a speed of 3600 km / sec . The wavelength of light observed on earth will ( c= 3 xx 10 ^(8) m//sec is the speed of light)

star emitting light of wavelength 5896 Å is moving away from the earth with a speed of 3600 km / sec . The wavelength of light observed on earth will ( c= 3 xx 10 ^(8) m//sec is the speed of light)