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A unit vector which is perpendicular to ...

A unit vector which is perpendicular to both the vectors `veca=hati-hatj-hatk` and `vecb=hati+hatj+hatk` is -

A

`hati+hatk`

B

`(1)/(sqrt(2))(hatj-hatk)`

C

`(1)/(sqrt(2))(hati+hatj)`

D

`(1)/(sqrt(2))(-hatj+hatk)`

Text Solution

Verified by Experts

The correct Answer is:
D
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 5
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  2. If vecr(1)=hati+2hatj-2hatk and vecr(2)=3hatj-4hatk, then the angle be...

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  3. A unit vector which is perpendicular to both the vectors veca=hati-ha...

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  7. If the line vecr=(2hati-hatj+3hatk)+lambda(2hati+hatj+2hatk) is paral...

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  18. If (x+y)^(m+n)=x^(m)y^(n), then the value of (dy)/(dx) is -

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  19. If x+y=e^(x-y) then the value of (d^(2)y)/(dx^(2)) is -

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