Question

Q2. Two indifference curves never intersect each other. Explain

Answer 1

If two line intersect at any point then two tangent can be drawn at one point indicates two directions of electric field, which is not possible because at any point there is only one direction of field. That is why they never intersect each other.
hope it will help you...

Answer 2

The indifference curves cannot intersect each other. It is because at the point of tangency, the higher curve will give as much as of the two commodities as is given by the lower indifference curve. This is absurd and impossible.
lower can't be equal to higher at any point of combination. so they don't intersect.