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Let vec a=2 hati+hat j+ hat k , vec b=h...

Let ` vec a=2 hati+hat j+ hat k , vec b=hat i+2hat j- hatk` and a unit vector ` vec c` be coplanar. If ` vec c` is perpendicular to ` vec a ,` then ` vec c` is a.`1/(sqrt(2))(-hat j+hat k)` b. `1/(sqrt(3))(-hat i-hat j-hat k)""` c. `1/(sqrt(5))(-hat k-2 hat j)` d. `1/(sqrt(3))(hat i-hat j- hat k)`

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CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. Position vector hat k is rotated about the origin by angle 135^0 in...

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  2. A non-zero vector vec a is such that its projections along vectors ...

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  3. Let vec a=2 hati+hat j+ hat k , vec b=hat i+2hat j- hatk and a unit v...

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  4. Let vec a=2i+j-2ka n d vec b=i+jdot If vec c is a vector such that ...

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  5. Let A B C D be a tetrahedron such that the edges A B ,A C and A D ar...

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  6. Vector vec a in the plane of vec b=2 hat i+ hat ja n d vec c= hat i...

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  7. If vec a , vec b and vec c are non-coplanar unit vectors such that ...

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  8. Let vec u , vec v and vec w be vectors such that vec u+ vec v+ vec w...

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  9. If vec a , vec b ,a n d vec c are three non-coplanar non-zero vecr...

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  10. Let vec pa n d vec q be any two orthogonal vectors of equal magnitu...

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  11. vec a , vec ba n d vec c are three non-coplanar ,non-zero vectors an...

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  12. Find a unit vector perpendicular to each of the vectors ( vec a+ vec...

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  13. Prove that ( vec a.( vec bxx hat i)) hat i+( vec a.( vec bxx hat j)) h...

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  14. Column I, Column II The possible value of vec a if vec r=( hat i+ ha...

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  15. If vec A, vec B and vec C are vectors such that |vec B|=|vec C|. Prove...

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  16. A parallelogram is constructed on 3 vec a+ vec ba n d vec a-4 vec b...

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  17. Statement 1: Vector vec c=-5 hat i+7 hat j+2 hat k is along the bisec...

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  18. Statement 1: A component of vector vec b=4 hat i+2 hat j+3 hat k in...

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  19. Statement 1 : Points A(1,0),B(2,3),C(5,3),a n dD(6,0) are concyclic. S...

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  20. Let vec r be a non-zero vector satisfying vec r dot vec a= vec rdo...

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