Question

A unit vector has the magnitude of ___

(a) 5

(b) 1

(c) 10

(d) 0

I had been asked this question by my school teacher while I was bunking the class.

The query is from Motion in a Plane in portion Motion in a Plane of Physics – Class 11

Answer 1

Correct option is (b) 1

To elaborate: A unit vector has the magnitude 1. It is used to represent non-unit vectors using along other unit vectors. Any vector can be represented as a sum of unit vectors, multiplied by required scalars.