The radial speed of a galaxy is `1.2 xx 10^(6)m//s` receding away from earth. What is the percentage change in wavelength in the observed spectrum ?

A star is moving away from the Earth with speed V. Change in wavelength (dlambda) observed on Earth is

A star is moving towards the earth with a speed of 4 xx 10^(7) m//s . If the wavelength emitted by the star is 500 nm , what would be the change in wavelength received on earth ?

A rocket is moving away from the earth at a speed of 6 xx 10^(7) m//s . The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth (wavelength of blue light = 4600 Å )

A rocket is moving away from the earth at a speed of 6 xx 10^(7) m//s . The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth (wavelength of blue light = 4600 Å )

If velocity of a galaxy relative to earth is 1.2 xx 10^(6)ms^(-2) then percentage increase in wavelength of light from galaxy as compared to the similar source on earth will be :

If velocity of a galaxy relative to earth is 1.2 xx 10^(6)ms^(-2) then percentage increase in wavelength of light from galaxy as compared to the similar source on earth will be :

A star emitting light of wavelength 6000 Å is moving towards the earth with a speed of 3 xx 10^(6) m//s . What is the apparent wavelength of the emitted light ?

A rocket goes away from Earth at speed of 6 xx 10^(7) m//s and it has blue light in it, what will be the wavelength of light observed by observer at Earth? Wavelength of blue ligth =4600 Å