MCQ
Unit of stress is
- A$N/m$
- B$N - m$
- ✓$N/{m^2}$
- D$N - {m^2}$
✓
Answer
Correct option: C.
$N/{m^2}$
c
(c) ${\rm{Stress}} = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}$ = $\frac{N}{{{m^2}}}$
(c) ${\rm{Stress}} = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}$ = $\frac{N}{{{m^2}}}$
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
If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules
A soldier with a machine gun, falling from an alrplane gets detached from his parachute. He is able to resist the downward acceleration, if he shoots $40$ bullets a second at the speed of $500 \,m / s$. If the weight of a bullet is $49 \,g$, the weight of the man .......... $ \,kg$ with the gun? Ignore resistance due to air and assume the acceleration due to gravity, $g=9.8 \,ms ^{-2}$.
→The figure shows a velocity-time graph of a particle moving along a straight line If the particle starts from the position $x_0=-15\,m$ , then its position at $t=2\,s$ will be ........ $m$
→A bomb is released from a horizontal flying aeroplane. The trajectory of bomb is
A massless string is wrapped round a disc of mass $M$ and radius $R$. Another end is tied to a mass $m$ which is initially at height $h$ from ground level as shown in the fig. If the mass is released then its velocity while touching the ground level will be
→Irreversible process is
In Guericke's experiment to show the effect of atmospheric pressure, two copper hemispheres were tightly fitted to each other to form a hollow sphere and the air from the sphere was pumped out to create vacuum inside. If the radius of each hemisphere is $R$ and the atmospheric pressure is $p$, then the minimum force required (when the two hemispheres are pulled apart by the same force) to separate the hemispheres is
→A container of height $10\, cm$ is filled with water. There is a hole at bottom. Find the pressure difference between points at top and bottom.
→A body is executing simple harmonic motion with an angular frequency $2\,rad/s$. The velocity of the body at $20\, mm$ displacement, when the amplitude of motion is $60\, mm$, is ...... $mm/s$
→What is the maximum number of rectangular components into which a vector can be split in space?