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Q1:
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The scalar product of the vectors  and  is
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A. √18
B. 18
C. 17
D. 12 |
Answer 1:
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Q2:
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The scalar product of p and q can be given by:
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A. |p|.|q| sin θ
B. |p|.|q| cos θ
C. √(p2 + q2)
D. 0.5pq cos θ
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Answer 2:
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Q3:
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If p.q = 0 then p and q are:
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A. parallel
B. perpendicular
C. skew
D. both zero vectors |
Answer 3:
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Q4:
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If a =  and b =  then a.b is equal to
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A. 40
B. 20
C. 0
D - 40 |
Answer 4:
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Q5:
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If a = and b = are
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A. perpendicular
B. parallel
C. skew
D. inverses |
Answer 5:
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Q6:
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The dot (scalar) product of p =  and q = 
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A. 5
B. 7
C. -1
D.√50
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Answer 6:
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Q7:
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The angle between the two vectors p = and q = is
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A. 60o
B. 45o
C. 30 o
D. 90o |
Answer 7:
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Q8:
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If c =  and d =  then c.d is equal to:
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A. ls - rm
B. lr + ms
C. lr - ms
D. ls + rm |
Answer 8:
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Q9:
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for the following basic unit vectors i, j and k.
Which of the following is true?
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A. i.i = 1
B. j.j = 1
C. k.k = 1
D. All of the above |
Answer 9:
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Q10:
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p.p = |p|2 . True or false?
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A. True
B. False
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Answer 10:
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