If $f(x) = \begin{cases} x-5, & \text{for } x \leq 1 \\ 4x^2-9, & \text{for } 1 < x < 2 \\ 3x+4, & \text{for } x \geq 2 \end{cases}$,then $f^{\prime}(2^{+})$ is equal to

Assertion : Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion.
Reason : For heavy nuclei,binding energy per nucleon increases with increasing $Z$ while for light nuclei it decreases with increasing $Z$.

The human gene $Dystrophin$ contains how many million bases?

$A$ function $y = f(x)$ satisfies $(x + 1) f'(x) - 2(x^2 + x) f(x) = \frac{e^{x^2}}{x + 1}$ for all $x > -1$. If $f(0) = 5$,then $f(x)$ is:

The electronic configuration of the phosphide ion $(P^{3-})$ is similar to that of:

What is the concentration of $20$ volume $H_2O_2$ in $g/L$?