MCQ
How is the temperature of stars determined by
- AStefan's law
- ✓Wein's displacement law
- CKirchhoff's law
- DOhm's law
✓
Answer
Correct option: B.
Wein's displacement law
(b)
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The angle between the vectors $(\hat{i} \quad \hat{j})$ and $(\hat{j} \quad \hat{k})$ is
→The work done against gravity in taking $10 \mathrm{~kg}$ mass at $1 \mathrm{~m}$ height in lsec will be
→The patient is asked to drink $\mathrm{BaSO}_4$ for examining the stomach by $X$-rays because $X$-rays are
→A TV tower has a height of $100\ m$. The average population density around the tower is $1000$ per $km$. The radius of the earth is $6.4 \times 10^6 m$. the population covered by the tower is
→How many minimum number of non-zero vectors in different planes can be added to give zero resultant
According to Bernoulli's equation$\frac{P}{\rho g}+h+\frac{1}{2} \frac{v^2}{g}=\text { constant }$ The terms $A, B$ and $C$ are generally called respectively:
→The kinetic energy of an electron revolving around a nucleus will be
A bar magnet of length $3 \mathrm{~cm}$ has points $A$ and $B$ along its axis at distances of $24 \mathrm{~cm}$ and $48 \mathrm{~cm}$ on the opposite sides. Ratio of magnetic fields at these points will be
→The acceleration due to gravity at pole and equator can be related as
A block of mass $m$ lying on a rough horizontal plane is acted upon by a horizontal force $P$ and another force $Q$ inclined at an angle $\theta$ to the vertical. The block will remain in equilibrium, if the coefficient of friction between it and the surface is
→