$$ \text { Match the LIST-I with LIST-II } $$

List-I		List-II
A.	Spring constant	I.	$\mathrm{M}{\mathrm{L}}^2{\mathrm{T}}^{-2}{\mathrm{K}}^{-1}$$\mathrm{M}{\mathrm{L}}^2{\mathrm{T}}^{-2}{\mathrm{K}}^{-1}$ML^(2)T^(-2)K^(-1)
B.	Thermal conductivity	II.	${\mathrm{ML}}^0{\mathrm{T}}^{-2}$${\mathrm{ML}}^0{\mathrm{T}}^{-2}$ML^(0)T^(-2)
C.	Boltzmann constant	III.	$\mathrm{M}{\mathrm{L}}^2{\mathrm{T}}^{-3}{\mathrm{A}}^{-2}$$\mathrm{M}{\mathrm{L}}^2{\mathrm{T}}^{-3}{\mathrm{A}}^{-2}$ML^(2)T^(-3)A^(-2)
D.	Inductive reactance	IV.	$\mathrm{M}\mathrm{L}{\mathrm{T}}^{-3}{\mathrm{K}}^{-1}$$\mathrm{M}\mathrm{L}{\mathrm{T}}^{-3}{\mathrm{K}}^{-1}$MLT^(-3)K^(-1)

Choose the correct answer from the options given below:

Given below are two statements :

Statement I : Pressure of a fluid is exerted only on a solid surface in contact as the fluid-pressure does not exist everywhere in a still fluid.

Statement II : Excess potential energy of the molecules on the surface of a liquid, when compared to interior, results in surface tension.

In the light of the above statements, choose the correct answer from the options given below

A solid sphere of mass 5 kg and radius 10 cm is kept in contact with another solid sphere of mass 10 kg and radius 20 cm . The moment of inertia of this pair of spheres about the tangent passing through the point of contact is $\_\_\_\_$ $\mathrm{kg} \cdot \mathrm{m}^2$.

A simple pendulum has a bob with mass $m$ and charge $q$. The pendulum string has negligible mass. When a uniform and horizontal electric field $\vec{E}$ is applied, the tension in the string changes. The final tension in the string, when pendulum attains an equilibrium position is $\_\_\_\_$ .