List of top Physics Questions on thermal properties of matter asked in AIIMS

A body initially at 80$^{\circ}$C cools to 64$^{\circ}$C in 5 min and to 52$^{\circ}$C in 10 min. The temperature of the surrounding is

A black body, at a temperature of $227^{\circ} C$, radiates heat at a rate of $20 \,cal\, m ^{-2} s ^{-1} .$ When its temperature is raised to $727^{\circ} C$, the heat radiated by it in $cal \,m ^{-2} s ^{-1}$ will be closest to

Woolen clothes keep the body warm in winter. Air is a bad conductor of heat.

According to Wein's displacement law

For an enclosure maintained at $1000\, K$, the maximum radiation occurs at wavelength $\lambda_{m}$. If the temperature is raised to $2000\, K$, the peak will shift to

$1 \,Kcal$ of heat flowing through a rod of iron. When the rod is cut down to $4$ pieces then what will be the heat flowing through each piece having same differential temperature?

On a cold morning, a metal surface will feel colder to touch than a wooden surfaces, because

Woollen clothes keep the body warm, because wool

Heat travels through vaccum by

A quanity of heat required to change the unit mass of a solid substance, from solid state to liquid state, while the temperature remains constant, is known as

Which of the following instrument is used to measure temperature of the source from its thermal radiations?

During melting process, the heat given to a body is utilised in

The temperature of the sun is measured with

Critical temperature can be defined as the temperature

Calorimeters are made of which of the following?

Ratio of the amount of heat radiation, transmitted through the body to the amount of heat radiation incident on it, is known as

A metal rod at a temperature of $150^{\circ} C$, radiates energy at a rate of $20\, W$. If its temperature is increased to $300^{\circ} C$, then it will radiate at the rate of