The time period of rotation of the sun is 25 days and its radius is `7 xx 10&(8)m`. The Doppler shift for the light of wavelength `6000 Å` emitted from the surface of the sun will be

The periodic time of rotation of a certain star is 22 days and its radius is 7 xx 10^(8) metres . If the wavelength of light emitted by its surface be 4320 Å , the Doppler shift will be (1 day = 86400 sec )

The periodic time of rotation of a certain star is 22 days and its radius is 7 xx 10^(8) metres . If the wavelength of light emitted by its surface be 4320 Å , the Doppler shift will be (1 day = 86400 sec )

A light source approaches the observer with velocfity 0.8 c. The Doppler shift for the light of wavelength 5000 Å is

A light source approaches the observer with velocfity 0.8 c. The Doppler shift for the light of wavelength 5000 Å is

A light source approaches the observer with velocity 0.8 c . The doppler shift for the light of wavelength 5500 Å is

The time period of rotation of the sun about its axis is 27 days. If the sun expands to thrice of its present diameter, what will be its new period of rotation?

Doppler shift for the light of wavelength 6000Å emitted from the sun is 0.04 Å . If radius of the sun is 7 xx 10^(8)m then time period of rotation of the sun will be :