MCQ
Cooling law is based upon
  • A
    Plank's law
  • B
    Prevost law
  • Kirchoff's law
  • D
    Kirchoff's law

Answer

Correct option: C.
Kirchoff's law
c

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A particle is projected from the ground with an initial speed $\upsilon $ at an angle $\theta $ with horizontal. The average velocity of the particle between its point of projection and highest point of trajectory is
Two ideal Carnot engines operate in cascade (all heat given up by one engine is used by the other engine to produce work) between temperatures, $\mathrm{T}_{1}$ and $\mathrm{T}_{2} .$ The temperature of the hot reservoir of the first engine is $\mathrm{T}_{1}$ and the temperature of the cold reservoir of the second engine is $\mathrm{T}_{2} . T$ is temperature of the sink of first engine which is also the source for the second engine. How is $T$ related to $\mathrm{T}_{1}$ and $\mathrm{T}_{2}$, if both the engines perform equal amount of work?
A solid cylinder $(i)$ rolls down $(ii)$ slides down an inclined plane. The ratio of the accelerations in these conditions 
A bomb of mass $3m$ kg explodes into two pieces of mass $m kg$ and $2m$ $kg$. If the velocity of m kg mass is $16 m/s$, the total kinetic energy released in the explosion is ................. $\mathrm{mJ}$
The specific heat of $1$ mole of an ideal gas at constant pressure $({C_P})$ and at constant volume $({C_V})$ which is correct
An energy of $484\,J$ is spent in increasing the speed of a flywheel from $60\,rpm$ to $360\,rpm$. The moment of inertia of the flywheel is $.............\,kg - m ^2$
The second's hand of a watch has $6\, cm$ length. The speed of its tip and magnitude of difference in velocities of its at any two perpendicular positions will be respectively
Two identical particles each of mass $m$ go round a circle of radius $a$ under the action of their mutual gravitational attraction. The angular speed of each particle will be
The temperature of $3.00\, {mol}$ of an ideal diatomic gas is increased by $40.0^{\circ} {C}$ without changing the pressure of the gas. The molecules in the gas rotate but do not oscillate. If the ratio of change in internal energy of the gas to the amount of workdone by the gas is $\frac{{x}}{10} .$ Then the value of ${x}$ (round off to the nearest integer) is ..... . $\left(\right.$ Given $\left.{R}=8.31\, {J} {mol}^{-1} {K}^{-1}\right)$
The momentum of a particle of mass m is P. Its kinetic energy will be: