Question

At every point in space dot product of the polar and azimuthal unit vector is:
(a) 0
(b) 1
(c) -1
(d) none of the above

Answer 1

Answer:

option c will be the answer.

Answer 2

At every point in space dot product of the polar and azimuthal unit vector is -1 (Option C)

Explanation:

• A polar vector is a vector such as the radius vector that reverses sign when the coordinate axes are reversed.
• azimuthal angle φ, which is the normal polar coordinate in the x − y plane