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vecA and vecB and vectors expressed as v...

`vecA and vecB` and vectors expressed as `vecA = 2hati + hatj and vecB = hati - hatj` Unit vector perpendicular to `vecA and vecB` is:

A

`(hati - hatj + hatk)/(sqrt(3)) `

B

`(hati + hatj - hatk)/(sqrt(3)) `

C

`(hati + hatj + hatk)/(sqrt(3)) `

D

`hatk`

Text Solution

Verified by Experts

The correct Answer is:
D
`vecA xx vecB` will be prependicular to both `vecA and vecB`. Therefore,
`" "hatn=(vecA xx vecB)/(|vecA xx vecB|)= hatk `(on sloving)
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GRB PUBLICATION-VECTORS-OBJECTIVE QUESTIONS
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