The spectrum of thermal radiation from a...

The spectrum of thermal radiation from a blackbody is

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Thermal radiations

require no medium for their propagation.

heat the intervening medium through which they pass.

don't obey inverse square law.

travel with speed less than speed of light.

Mark out the correct statement with respect to thermal radiations emitted by a black body

At a given temperature, , energy is distributed non - uniformly among different wavelengths

As temperature of body is increased , energy content of all wavelengths decreases

The product of `E_lamda` (spectral energy) with `D_(lamda)` (spectral width) , for all equal `Deltalamda'` is the same

The thermal radiation emitted by a hot body is a discrete spectra

To which of the given below option is Monochromatic energy density (U_(lamda)) (i.e. per unit volume) of the radiation of a blackbody proportional to(where lamda is wavelength)

`T^(4)`

`lamda^(-5)`

`lamda^(5/2)`

`T^(5/4)`