If two solutions have the same osmolarity,they are said to be

If $A$ and $B$ are two sets,then $A \cap (A \cup B)'$ is equal to

If $A$ and $B$ are any two events,then $P(A \cup B) = $

The equation $\frac{1}{r} = \frac{1}{8} + \frac{3}{8} \cos \theta$ represents

The bond energy of $Cl_2$,$Br_2$,and $I_2$ follows the order:

$A$ star initially has $10^{40}$ deuterons. It produces energy via the processes:
${}_1H^2 + {}_1H^2 \to {}_1H^3 + p$
${}_1H^2 + {}_1H^3 \to {}_2He^4 + n$
The masses of the nuclei are as follows: $M(H^2) = 2.014 \, amu$,$M(p) = 1.007 \, amu$,$M(n) = 1.008 \, amu$,$M(He^4) = 4.001 \, amu$. If the average power radiated by the star is $10^{16} \, W$,the deuteron supply of the star is exhausted in a time of the order of: