MCQ
With rise in temperature, the Young's modulus of elasticity
- Achanges erratically
- ✓decreases
- Cincreases
- Dremains unchanged
✓
Answer
Correct option: B.
decreases
b
Conceptual questions
Conceptual questions
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
$50 \,gm$ ice at $0°C$ in insulator vessel, $50g$ water of $100°C$ is mixed in it, then final temperature of the mixture is (neglect the heat loss)
→An external pressure $P$ is applied on a cube at $0^o C$ so that it is equally compressed from all sides. $K$ is the bulk modulus of the material of the cube and a is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by
→A particle moves in the $X-Y$ plane under the influence of a force such that its linear momentum is $\overrightarrow{\mathrm{p}}(t)=A[\hat{\mathrm{i}} \cos (\mathrm{kt})-\hat{\mathrm{j}} \sin (\mathrm{kt})]$, where $A$ and $k$ are constants. The angle between the force and the momentum is
→To paint the side of $a$ building, painter normally hoists himself up by pulling on the rope $A$ as in figure. The painter and platform together weigh $200N$. The rope $B$ can withstand $300N$. Then
→Diamagnetic substances are
Out of the two cars $A$ and $B$, car $A$ is moving towards east with a velocity of $10 \,m / s$ whereas $B$ is moving towards north with a velocity $20 \,m / s$, then velocity of A w.r.t. $B$ is ......... $m / s$ (nearly)
→If ${\lambda _p}$ and ${\lambda _\alpha }$ be the de-Broglie's wavelengths associated with protons and $\alpha - $ particles of equal kinetic energies, then
→In extrinsic semiconductors
Find equivalent capacitance between $A$ and $B$
→In a biprism experiment using sodium light $\lambda = 6000\, Å$ an interference pattern is obtained in which $20$ fringes occupy $2\, cm$. On replacing sodium light by another source of wavelength $\lambda_2$ without making any other change $30$ fringes occupy $2.7\, cm$ on the screen. What is the value of $\lambda_2$?.......$\mathop A\limits^o $
→