Question

How to find normal for curved surface

Answer 1

Answer:

take the gradient at the required point.. if u are given the equation of the surface apply del operator for the point where u want to find the normal...

Answer 2

Answer:

Explanation:

Explain an activity to find the normal to a curved surface

Take a small piece of thin foam or rubber.

Put some pins in a straight line on the foam.

All these pins are perpendicular to the foam.

If the foam was considered as a mirror, each pin would represent the normal at the point.