In a series $LCR$ circuit,what will be the nature of the circuit for frequencies higher than the resonance frequency?

Which of the following is a primary lymphoid organ?

$Ge$ and $Si$ diodes conduct at $0.3\,V$ and $0.7\,V$ respectively. In the following figure,if the $Ge$ diode connection is reversed,the value of $V_0$ changes by.....$V$.

$Na^+$,$Mg^{2+}$,$Al^{3+}$,and $Si^{4+}$ are isoelectronic. What is the order of their ionic radii?

The $K_{\alpha}$ $X$-ray emission line of tungsten occurs at $\lambda = 0.021 \, nm$. The energy difference between $K$ and $L$ levels in this atom is about:

$\int e^x \left( \frac{2+\sin 2x}{1+\cos 2x} \right) dx$ is equal to