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The mean intensity of radiation on the surface of the Sun is about 10^(s)W//m^2 . The rms value of the corresponding magnetic field is closed to :

The mean intensity of radiation on the surface of the Sun is about 10^(s)W//m^2 . The rms value of the corresponding magnetic field is closed to :

The intensity of solar radiation just outside the earth's atmosphere is measured to be 1.4 kW//m^2 . If the radius of the sun 7xx10^8m , while the earth-sun distance is 150xx10^6km , then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body, iii. the most probable wavelength in solar radiation.

The intensity of salr radiation just outside the earth's atmosphere is measured to be 1.4 kW//m^2 . If the radius of the sun 7xx10^8m , while the earth-sun distance is 150xx10^6km , then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body, iii. the most probable wavelength in solar radiation.

We know that the Sun is fundamental source of all energy that we use. Huge amount of energy is being produced in the Sun and this energy is radiated all around in the form of electromagnetic waves of several possible wavelengths. We can treat the Sun as a point source because it radiates energy uniformly in all directions. Intensity of wave at a point is defined as amount of energy passing that point per unit time and per unit area. We know that Earth is at a distance approximately 1.5 xx 10^(11) m from the Sun and assume that intensity of radiation of the Sun reaching Earth's surface is 10^3 W/ m^2 . How much energy is being radiated by the sun in one second ?

Average distance of the sun from the earth is 1.5xx10^8 km and the average intensity of sunlight incident on the earth's surface is 1300 W . m^(-2) . Calculate the energy radiated per second from the surface of the sun.

About 5% of the power of a 100 W light bulb is converted to visible radiation . What is the average intensity of visible radiation at a distance of 1 m from the bulb ? Assume that the radiation is emitted isotropically and neglect reflection .