Question
Select the correct statement for work, heat and change in internal energy.
✓
Answer
(d)
All statements are correct.
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
An arc of a circle of radius $R$ subtends an angle $\frac{\pi }{2}$ at the centre. It carries a current $i$. The magnetic field at the centre will be
→The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
A $10\, V$ battery connected to $5\,\Omega $ resistance coil having inductance $10\, H$ through a switch drives a constant current in the circuit. The switch is suddenly opened and the time taken to open it is $2\, ms$. The average $emf$ induced across the coil is
→On moving a charge of $20$ coulombs by $2 \;cm , 2 \;J$ of work is done, then the potential difference between the points is (in $volt$)
→The current through an ideal $PN-$junction shown in the following circuit diagram will be .....$mA$
→$1 a.m.u.$ is equivalent to
→A long straight wire in the horizontal plane carries a current of $50\, A$ in north to south direction. Give the magnitude and direction of $B$ at a point $2.5\,m$ east of the wire
→A vessel containing water is moving with a constant speed towards right along a straight horizontal path. Which of the following diagrams represents the surface of liquid?
A ball is dropped from a height of $20 \mathrm{~m}$ above the surface of water in a lake. The refractive index of water is $4 / 3$. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is $12.8 \mathrm{~m}$ above the water surface, the fish sees the speed of ball as |Take $g=10 \mathrm{~m} / \mathrm{s}^2 . \mid$
→The velocity of light emitted by a source $S $ observed by an observer $O$, who is at rest with respect to $S$ is $c$. If the observer moves towards $S$ with velocity $v$, the velocity of light as observed will be
→