MCQ
A cyclic process is shown in figure. Work done during isobaric expansion is ...... $J$
- A$150$
- B$100$
- ✓$400$
- D$200$
✓
Answer
Correct option: C.
$400$
c
$W = 2\times10^2\, (2) = 400\, J$
$W = 2\times10^2\, (2) = 400\, J$
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
A car is moving on a circular path of radius $600\,m$ such that the magnitudes of the tangential acceleration and centripetal acceleration are equal. The time taken by the car to complete first quarter of revolution, if it is moving with an initial speed of $54\,km / hr$ is $t \left(1- e ^{-\pi / 2}\right)\,s$. The value of $t$ is $.............$.
→Motion of an oscillating liquid column in a U-tube is:
A ball is thrown on a lawn in such a way that it initially slides with a speed $v_0$ without rolling. It gradually picks up rotation motion. Speed of the ball at which there will be rolling without slipping is
→The coefficient of friction between tyres and the road is 0.1. Find the maximum speed allowed by traffic police for cars to cross a circular turn of radius 10m to prevent accident.
A person standing on an open ground hears the sound of a jet aeroplane, coming from north at an angle $60^o$ with ground level. But he finds the aeroplane right vertically above his position. If $\upsilon $ is the speed of sound, speed of the plane is
→A disc of mass $m$ and radius $r$ is free to rotate about its centre as shown in the figure. A string is wrapped over its rim and a block of mass $m$ is attached to the free end of the string. The system is released from rest. The speed of the block as it descends through a height $h$, is .....
→$A$ uniform disc is rolling on a horizontal surface. At a certain instant $B$ is the point of contact and $A$ is at height $2R$ from ground, where $R$ is radius of disc.
→$Assertion :$ A transverse waves are produced in a very long string fixed at one end. Only progressive wave is observed near the free end.
$Reason :$ Energy of reflected wave does not reach the free end.
→$Reason :$ Energy of reflected wave does not reach the free end.
A pump is required to lift $1000\,kg$ of water per minute from a well of depth $10 \,m$ and eject it with a speed of $10\,ms^{-1}$. The horse-power of the engine needed is : (Assume $g = 10\,m/sec^2$ )
→Coefficient of linear expansion of a vessel completely filled with $Hg$ is $1 \times 10^{-5} /{ }^{\circ} C$. If there is no overflow of $Hg$ on heating the vessel, then coefficient of cubical expansion of $Hg$ is ......
→