MCQ
The nuclear cross-section is measured in barn, it is equal to
- A${10^{ - 20}}\,{m^2}$
- B${10^{ - 30}}\,{m^2}$
- ✓${10^{ - 28}}\,{m^2}$
- D${10^{ - 14}}\,{m^2}$
$1 \text { Barn }=10^{-28}\, m ^2$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Match the paths in List $I$ with the magnitudes of the work done in List $II$ and select the correct answer using the codes given below the lists.
| List $I$ | List $I$ |
| $P.$ $\quad G \rightarrow E$ | $1.$ $\quad 160 P_0 V_0 \ln 2$ |
| $Q.$ $\quad G \rightarrow H$ | $2.$ $\quad 36 P _0 V _0$ |
| $R.$ $\quad F \rightarrow H$ | $3.$ $\quad 24 P _0 V _0$ |
| $S.$ $\quad F \rightarrow G$ | $4.$ $\quad 31 P_0 V_0$ |
Codes: $ \quad \quad P \quad Q \quad R \quad S $ 