Determine the height above the dashed line $XX ^{\prime}$ attained by the water stream coming out through the hole is situated at point $B$ in the diagram given below. $...........\,m$ Given that $h =10\,m , L =2\,m$ and $d =30^{\circ}$.

The binding energy per nucleon versus mass number curve for nuclei is shown in the figure. $W, X, Y$ and $Z$ are four nuclei indicated on the curve. The process that would release energy is:

Which part of the human brain controls the breathing movements?

Given in the figure are two blocks $A$ and $B$ of weight $20 \, N$ and $100 \, N$,respectively. These are being pressed against a wall by a force $F$ such that the system does not slide as shown. If the coefficient of friction between the blocks is $0.1$ and between block $B$ and the wall is $0.15$,the frictional force applied by the wall on block $B$ is ........ $N$.

When an unpolarized light of intensity $I_0$ is incident on a polarizing sheet,the intensity of the light which does not get transmitted is

Order of toxicity among ammonia,urea and uric acid (from lower to higher) is