The radius of a-spherical blackbody is 12 cm and it is heated at 500k temperature to release 450 watt of heat energy. If the radius becomes half of the initial value and the temperature is doubled then what is the amount of its radiant energy?

A spherical blackbody of 12 cm radius used to emit 540 w thermal energy at 500 k temperature.. If the radius is halved and temperature is doubled then what will be the radiant energy?

A spherical blackbody of radius 12 cm at 5000 K temperature emits 540 watt thermal power. Find out the emitted power if its radius being half & temperature being doubled.

A spherical black body of radius 12 cm radiates 450 W power at 500 K. If the radius is reduced to half and temperature is doubled. find the power- radiated in watt.

The temperature of an ideal gas is 340 K. the gas is heated to a temperature at constant pressure. As a result, its volume increases by 18%. What is the final temperature of the gas?

The specific heat c of a solid at low temperature shows temperature dependence according to the relation c= DT^(3) where D is a constant and T is the temperature in kelvin. A piece of this solid of mass m kg is taken and its temperature is raised from 20K to 30K. The amount of heat required in the process in energy units is

The amount of heat energy required to raise the temperature of 1g of water b 1^@C is called

IF the absolute temperature of a perfect gas rises to four times its initial value estimate the changes of total kinetic energy.

(i) The pressure and temperature of 0.8 g of He gas are 1 atm and 298 K respectively. If 400 J of heat is applied to the gas at constant volume, what will be change in internal energy and the final temperature of the gas ? (ii) If the same amount of heat is applied to the gas at constant pressure, then what will be the change in internal energy and the final temperature of the gas ? For both the cases, assume He gas behaves ideally and its C_(V)=(3)/(2)R .