Multiple choice

d Option is incorrect.. option b is also correct, because if we assume sphere around origin then flux is zero and potential is constant so it create equipotential surface around or...

for question 37. option A and B are correct.

according to me, ques no 32 is msq because option a is also correct. potential due to dipole is proportional to 1/(r^2)

in ques 37, option a is correct, L=mr*v , r*v is always along z direction and magnitude is always constant as m,r,v constant

for ques 32, option c is right because dipole has +q,-q charge so total charge is zero, therefore electric flux is zero (electric flux=total charge enclosed/epsilon)