MCQ
Electric lines of force about negative point charge are
- ACircular, anticlockwise
- BCircular, clockwise
- ✓Radial, inward
- DRadial, outward

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$X^{200} \rightarrow A^{110} + B^{90}$
If the binding energy per nucleon for $X, A$ and $B$ is $7.4 \,MeV, 8.2\, MeV$ and $8.2\, MeV$ respectively, what is the energy released ? ......... $MeV$
The total force on a $1 \,C$ point charge, placed at the origin, is $x \times 10^{3}\, N$. The value of $x$, to the nearest integer, is .........
[Take $\left.\frac{1}{4 \pi \in_{0}}=9 \times 10^{9} \,Nm ^{2} / C ^{2}\right]$