MCQ
Thermocouple is a device for the measurement of
  • A
    Absolute temperature of a metal
  • The temperature difference between two substances
  • C
    The couple acting on a wire
  • D
    Thermal conductivity of a substance

Answer

Correct option: B.
The temperature difference between two substances
(b)

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

In a $L C R$ circuit having $L=8.0$ henry, $C=0.5 \mu F$ and $R=100$ ohm in series. The resonance frequency in per second is
GaAs is
A graph is shown between stress and strain for a metal. The part in which Hooke's law holds good is

A graph is shown between stress and strain for a metal. The part in which Hooke's law holds good is

Image

With what velocity an observer should move relative to a stationary source so that he hears a sound of double the frequency of source
If the energy of a hydrogen atom in $n$th orbit is $E_n$, then energy in the $n$th orbit of a singley ionized helium atom will be
A car having a mass of $1000\  \mathrm{~kg}$ is moving at a speed of $30$ metres/sec. Brakes are applied to bring the car to rest. If the frictional force between the tyres and the road surface is $5000$ newtons, the car will come to rest in
To Verify Ohm's law, a student is provided with a test resistor $\mathrm{R}_{\mathrm{T}}$, a high resistance $\mathrm{R}_1$, a small resistance $\mathrm{R}_2$, two identical galvanometers $\mathrm{G}_1$ and $\mathrm{G}_2$, and a variable voltage source $\mathrm{V}$. The correct circuit to carry out the experiment is
A dip needle vibrates in the vertical plane perpendicular to the magnetic meridian. The time period of vibration is found to be $2$ seconds. The same needle is then allowed to vibrate in the horizontal plane and the time period is again found to be 2 seconds. Then the angle of dip is
A body of mass $2 \mathrm{~kg}$ is projected vertically upwards with a velocity of $2 \mathrm{~m} \mathrm{sec}^{-1}$. The K.E. of the body just before striking the ground is
The lines of forces due to earth's horizontal component of magnetic field are