I f the angle betwen the vectors and is θ , the value of … | CGP Edu

Physics Vectors Basic Mathematics MCQ (Single Correct)

I f the angle betwen the vectors and is θ , the value of the product ( × ). is equal to :

A

BA2 cos θ

B

BA2 sin θ

C

BA2 sin θ cos θ

D

zero

Text Solution

Verified by Experts

The correct answer is:

.

= B Acos θ .

= 0

Here is perpendicular to both and .

Alternative : .

Interchange the cross and dot, we have,

. = = 0 ( × = 0)

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