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Let vec u=hat i+hat j,vec v=hat i-hat j ...

Let `vec u=hat i+hat j,vec v=hat i-hat j and vec w=hat i+2 hat j+3hat k`.If `hat n` is a unit vector such that `vec u*hat n=0 and vec v*hat n=0 ` then `|vec w*hat n|` is equal to

A

`1`

B

`2`

C

`3`

D

`0`

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT MATHS-PRODUCT OF VECTORS-Exercise (Single Option Correct Type Questions)
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  2. If the vectors 3 vec p + vec q; 5 vec p - 3 vecq and 2 vec p + vec q; ...

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  3. Let vec u=hat i+hat j,vec v=hat i-hat j and vec w=hat i+2 hat j+3hat k...

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  4. Given a parallelogram ABCD. If |vec(AB)|=a, |vec(AD)| = b & |vec(AC)| ...

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  5. For two particular vectors vec A and vec B it is known that vec A xx ...

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  6. For some non zero vector vecv, if the sum of vecv and the vector obtai...

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  7. In isosceles triangles A B C ,| vec A B|=| vec B C|=8, a point E divid...

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  8. Given an equilateral triangle ABC with side length equal to 'a'. Let M...

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  9. In a quadrilateral ABCD, AC is the bisector of the (AB, AD) which is (...

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  10. If the distance from the point P(1, 1, 1) to the line passing through ...

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  11. Given the vectors vec u=2 hat i-hat j-hat k and vec v=hat i-hat j+2ha...

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  12. Vector vec c is perpendicular to vectors vec a=(2,-3,1)a n d vec b...

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  13. Let vec a= hat j+hat j,vec b=hat j+hat k and vec c=alpha vec a+beta v...

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  14. A rigid body rotates about an axis through the origin with an angular ...

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  15. A rigid body rotates with constant angular velocity omega about the li...

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  16. Consider DeltaABC with A=(veca);B=(vecb) and C=(vecc). If vecb.(veca+v...

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  17. Given unit vectors m, n and p such that angle between m and n. Angle b...

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  18. If veca and vecb are two unit vectors, then the vector (veca+vecb)xx(v...

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  19. If veca and vecb are othogonal unit vectors, then for a vector vecr no...

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  20. If vector vec i+ 2vec j + 2vec k is rotated through an angle of 90^@...

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