Question

Identify the correct options about vector i^+j^
(a)it's unit vector
(b) it's is proper vector
(c)it is not a unit vector
(d) it's magnitute is √2​

Answer 1

Answer:

Step-by-step explanation:

A vector is a quantity which has both magnitudes, as well as direction. A vector which has a magnitude of 1 is a unit vector. It is also known as Direction Vector.  

For example, vector v = (1,3) is not a unit vector, because its magnitude is not equal to 1, i.e., |v| = √(12+32) ≠ 1. Any vector can become a unit vector by dividing it by the magnitude of the given vector.

Unit Vector Symbol:

Unit Vector is represented by the symbol ‘^’, which is called as cap or hat, such as: a^. It is given by a^=a|a|

Where |a| is for norm or magnitude of vector a.

It can be calculated using a Unit vector formula or by using a calculator

Answer 2

Answer:

• magnitude not equql to zero so proper vector b correct and not a unit vector also correct.and magnitude
• $\sqrt{2}$
• correct do options b,c,d correct answer