Question
$Dyne/cm^2$ is not a unit of
✓
Answer
(c)
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
Among the two interfering monochromatic sources $A$ and $B$; $A$ is ahead of $B$ in phase by $66^o $. If the observation be taken from point $P$, such that $PB -PA = \lambda /4$. Then the phase difference between the waves from $A$ and $B$ reaching $P$ is.....$^o $
→A potential difference of $2\,V$ is applied between the opposite faces of a Ge crystal plate of area $1\, cm^{2}$ and thickness $0.5\, mm$. If the concentration of electrons in Ge is $2 × 10^{19}/m^{3}$ and mobilities of electrons and holes are $0.36\frac{{{m^2}}}{{volt - \sec }}$ and $0.14\frac{{{m^2}}}{{volt - \sec }}$ respectively, then the current flowing through the plate will be.....$A$
→Carbon-$11$ decays to boron-$11$ according to the following formula.
→${ }_6^{11} C \rightarrow{ }_5^{11} B +e^{+}+ v _e+0.96 \,MeV$
Assume that, positrons $\left(e^{+}\right)$produced in the decay combine with free electrons in the atmosphere and annihilate each other almost immediately. Also, assume that the neutrinos $\left(v_e\right)$ are massless and do not interact with the environment. At $t=0$, we have $1 \mu g$ of ${ }_6^{12} C$. If the half-life of the decay process is $t_0$, the net energy produced between time $t=0$ and $t=2 t_0$, will be nearly ........... $MeV$
The variation of potential with distance $x$ from a fixed point is as shown in figure. The electric field at $x =13\,m$ is......$volt/meter$
→The expression for the torque acting on a coil having area of cross-section $A$, number of turns $n$, placed in a magnetic field of strength $B$, making an angle $\theta $ with the normal to the plane of the coil, when a current $i$ is flowing in it, will be
→A square loop of side $a$ hangs from an insulating hanger of spring balance. The magnetic field of strength $B$ occurs only at the lower edge. It carries a current $I$. Find the change in the reading of the spring balance if the direction of current is reversed
→The area of cross section of the rope used to lift a load by a crane is $2.5 \times 10^{-4} m ^{2}$. The maximum lifting capacity of the crane is $10$ metric tons. To increase the lifting capacity of the crane to $25$ metric tons, the required area of cross section of the rope should be.$.........\times 10^{-4} \,m ^{2}$ (take $g =10\, ms ^{-2}$ )
→Tangential acceleration of a particle moving in a circle of radius $1$ $m$ varies with time $t$ as (initial velocity of particle is zero). Time after which total acceleration of particle makes and angle of $30^o$ with radial acceleration is
→The relation $C_p-C_V=R\left(C_p\right.$ and $C_V$ are the molar specific heats at constant pressure and volume) is exactly true for
→An ideal transformer has $500$ and $5000$ turn in primary and secondary windings respectively. If the primary voltage is connected to a $6\,V$ battery then the secondary voltage is.......$V$
→