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Vector (b xx c) xx (c xx a) is a vector...

Vector `(b xx c) xx (c xx a)` is a vector

A

in the direction of a

B

along b

C

in the direction of c

D

none of the above

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The correct Answer is:
C
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ML KHANNA-ADDITION AND MULTIPLICATION OF VECTORS -Problem Set (3) (MULTIPLE CHOICE QUESTIONS)
  1. The vector hati xx [(axxb) xx hati] + hatj xx [(axxb)xxhatj ] + hat...

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  2. If a xx b = c, b xx c= a and a,b,c be moduli of the vector a, b,c res...

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  3. Vector (b xx c) xx (c xx a) is a vector

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  4. If (a xx b) xx c = a xx (bxx c), then

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  5. If (veca xx vecb) xx vecc = vec a xx (vecb xx vecc), where veca, vecb ...

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  6. [a " " b " " axx b] is equal to

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  7. a xx [ a xx (a xx b)] equals

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  8. If the vectors veca and vecb are mutually perpendicular, then veca xx ...

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  9. If |a|=2a n d|b|=3 and adotb=0,t h e n(axx(axx(axx(axxb)))) is equal t...

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  10. [a " " b " "axxb] +[a.b]^(2) =

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  11. If a = 1,2,4, b =2,-3,-1, c=1,4-4, then the vector a xx(b xxc) is orth...

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  12. The magnitudes of vectors vec a , vec b and vec c are respectively 1...

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  13. For non-coplanar vectors a, b and c, abs((a times b)*c)=abs(a) abs(b) ...

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  14. Let veca = 2i + j + k, and b = i+ j if c is a vector such that veca ....

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  15. Let a =2i+j-2k and b=i+j. If c is a vector such that a.c = |c|,|c-a| =...

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  16. Let the unit vectors a and b be perpendicular and the unit vector c be...

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  17. The equation of the plane containing the line vecr= veca + k vecb and ...

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  18. ( axxb) xx (a xxc ).d equals

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  19. If a,b,c and d be four vectors, then (a xxb). (c xx d) + ( b xx c) . ...

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  20. If the non-zero vectors a and b are perpendicular to each other, then ...

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