Thermal Propert...

The wavelength of radiation emitted by a body depends upon

If black wire of platinum o heated, then its colour first appear red, then yellow and family white. It can be understood on basis of

Four pieces of iron heated in a furnace to different temperatures show different colours listed below. Which one has the highest temperature?

The wavelength of maximum energy released during an atomic explosion was 2.93 × 10^–10 m. Given that Wien\'s constant is 2.93 × 10^–3 m-K, the maximum temperature attained must be of order of

The temperature of stars is determined by

On increasing the temperature of a substance gradually, which of the following colours will be noticed by you?

Relation between the colour and temperature of a star is given by

The maximum energy in thermal radiation from a source occurs at the wavelength 4000 Å. The effective temperature of the source is

Solar radiation emitted by sun resembles that emitted by a black body at a temperature of 6000 K. Maximum intensity is emitted at a wavelength of about 4800 Å. If the sun were to cool down from 6000 K to 3000 K, then the peak intensity would occur at a wavelength

The radiation energy density per unit wavelength at a temperature T has a maximum at a wavelength λ₀. At temperature 2T, it will have a maximum at a wavelength