Answer:

Explanation:
From the question we are told that:
Fermi energy of conduction electrons 
Generally the equation for Fermi energy is mathematically given by



Where
h= Planck's constant




Answer:
Pressure wil be greatest at R [coz due to capillary action, coz it's small cross-sectional area]
Answer:
Option (c) is correct.
Explanation:
Acceleration of an object is given by the formula as follows :

Where
u and v are initial and final velocity
t is time
(v-u) is also called the change in velocity
So, the acceleration of an object is equal to the rate of change of velocity. Hence, the correct option is (c) " Change in its velocity divided by the change in time".
It is to highly priced for most of civilization.