A solid sphere of radius carries a charge
distributed uniformy over its volume. A very small point like piece of it of mass
gets detached from the bottom of the sphere and falls down vertically under gravity. This piece carries charge
. If it acquires a speed
when it has fallen through a vertical height
(see figure), then :(assume the remaining portion to be spherical ).
Option: 1
Option: 2
Option: 3
Option: 4
5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
A capacitor is made of two square plates each of side 'a' making a very small angle
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d