MCQ
The Wien’s displacement law express relation between
  • A
    colour of light and temperature
  • B
    temperature and wavelength
  • C
    radiation energy and wavelength
  • Wavelength corresponding to maximum energy and temperature

Answer

Correct option: D.
Wavelength corresponding to maximum energy and temperature
d
(d) Wien's displacement law states that the product of absolute temperature and the wavelength at which the emissive power is maximum is constant i.e.

$\lambda_{\max } T=$ constant.

Therefore it expresses relation between

wavelength corresponding to maximum energy and temperature.

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 streamline flow:
  1. The speed of a particle always remains same.
  2. The velocity of a particle always remains same.
  3. The kinetic energies of all the particles arriving at a given point are the same.
  4. The momenta of all the particles arriving at a given point are the same.
A heavy small-sized sphere is suspended by a string of length $l$. The sphere rotates uniformly in a horizontal circle with the string making an angle $\theta $ with the vertical. Then the time period of this conical pendulum is
In figure, the coefficient of friction between the floor and the block $B$ is $0.2$ and  between blocks $A$ and $B$ is $0.3$. ........ $N$  is the maximum horizontal force $F$ can be  applied to the block $B$ so that both blocks move together .
The elastic energy stored in a wire of Young's modulus $Y$ is
Two masses $M$ and $m$ are connected by a weightless string. They are pulled by a force $F$ on a frictionless horizontal surface., the acceleration of mass $m$ is
The upper half of an inclined plane with inclination $\phi$ is perfectly smooth, while the  lower half is rough. $A$ body starting from rest at the top will again come to rest at the  bottom, if the coefficient of friction for the lower half is given by-
A train is running at $20 \,m / s$ on a railway line with radius of curvature $40,000$ metres. The distance between the two rails is $1.5$ metres. For safe running of train the elevation of outer rail over the inner rail is ......$mm$ $\left( g =10 \,m / s ^2\right)$
The time of flight of an object projected with speed $20 \,ms ^{-1}$ at an angle $30^{\circ}$ with the horizontal, is .... $s$
A stone thrown upward with a speed $u$ from the top of a tower reaches the ground with a velocity $4 u$. The height of the tower is .........
A spring has a certain mass suspended from it and its period for vertical oscillation is $T$. The spring is now cut into two equal halves and the same mass is suspended from one of the halves. The period of vertical oscillation is now