Question

If two vectors are perpendicular to each other then which of these is zero (a) scalar product or dot product (b) vector product or cross product (c) both (a) and (b) (d) none

Answer 1

a. scalar product

Step-by-step explanation:

scalar product of two vectors:

ab = |a| |b| cos(x) where x = 90 degree (perpendicular)

so, cos(90) is zero, ab = 0

then, the answer is an option a.