MCQ
The unit of absolute permittivity is
- A$Fm$ (Farad-meter)
- ✓$F{m^{ - 1}}$ (Farad/meter)
- C$F{m^{ - 2}}$(Farad/$metr{e^2}$)
- D$F$ (Farad)
✓
Answer
Correct option: B.
$F{m^{ - 1}}$ (Farad/meter)
b
(b)
(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
A sample of an ideal gas is taken through the cyclic process $abca$ as shown in the figure. The change in the internal energy of the gas along the path $ca$ is $-180\, J$. The gas absorbs $250\, J$ of heat along the path $ab$ and $60\, J$ along the path $bc$. The work done by the gas along the path $abc$ is ..... $J$
→The momentum $p$ (in $kg m / s )$ of a particle is varying with time $t$ (in $s )$ as $p=2+3 t^2$. The force acting on the particle at $t=3 s$ will be ......... $N$
→Two balls are projected with the same velocity but with different angles with the horizontal. Their ranges are equal. If the angle of projection of one is $30^{\circ}$ and its maximum height is $h$, then the maximum height of other will be
→Action and reaction:
The two vectors $\vec A = -2\widehat i + \widehat j + 3\widehat k$ and $\vec B = 7\widehat i + 5\widehat j + 3\widehat k$ are :-
→The ratio of the volume of the atom to the volume of the nucleus is of the order of:
Mark the correct statements for a particle going on a straight line:
- If the velocity and acceleration have opposite sign, the object is slowing down.
- If the position and velocity have opposite sign, the particle is moving towards the origin.
- If the velocity is zero at an instant, the acceleration should also be zero at that instant.
- If the velocity is zero for a time interval, the acceleration is zero at any instant within the time interval.
Which of the following are not a unit of time?
To reduce the least count error, instruments need higher:
Four persons $K,\,L,\,M$ and $N$ are initially at the corners of a square of side of length $d$. If every person starts moving, such that $K$ is always headed towards $L,\,L$ towards $M,\,M$ is headed directly towards $N$ and $N$ towards $K$, then the four persons will meet after
→