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If the angle between the vector vecA and...

If the angle between the vector `vecA and vecB` is theta , the value of the product `( vecB xx vecA). vecA` is equal to -

A

`A^(2)B`

B

zero

C

`A^(2)B sin theta `

D

`A^(2)B cos theta`

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Verified by Experts

The correct Answer is:
b
`vecA xx vecB` is perpendicular to `vecA`. The dot product of two perpendicular vector is zero.
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ICSE-COMPETITION CARE UNIT-VECTORS AND SCALARS [Selected from Previoius Years Engg. & Med. & IIT Exam Qns]
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