Wednesday, 21 September 2022

KINEMATICS : MCQ ON VECTORS

 

 

Q1 when a scalar quantity multiplied with a vector quantity, then the direction of the product is

  • a) Opposite direction to vector quantity
  • b) Same direction to vector quantity
  • c) Perpendicular to the direction of vector quantity
  • d) None

  • b) Same direction to vector quantity

Q2  when a vector quantity velocity is multiplied with a scalar quantity time then a new product form is

  • a) Linear momentum
  • b) Velocity vector
  • c) Distance
  • d) Displacement

  • d) Displacement

Q3  Unit vector has no sense of direction (T/F)

  • a) True
  • b) False 

  • b) False 

Q4 When two vectors in the same direction are added, the magnitude of resulting vector is equal to _______

  • a) Sum of magnitudes of the vectors
  • b) Difference of magnitudes of the vectors
  • c) Product of magnitudes of the vectors
  • d) Sum of the roots of magnitudes of the vectors

  • a) Sum of magnitudes of the vectors

Q5  On adding two vectors we get _____

  • a) A vector
  • b) A scalar
  • c) A number
  • d) An operation

  • a) A vector

Q6 Laws of algebra can be used to add Vectors..

  • a) True
  • b) False

  • b) False

Q7  The resultant of two  vectors P and Q acting (such that P>Q )  along in a straight line, but in opposite direction is :-

  • (a) P + Q 
  • (b) P – Q
  • (c) P / Q 
  • (d) Q / P


  • (b) P – Q

Q8 The resultant of two equal vectors P making an angle θ is given by :-

  • a) `2PSin\frac{θ}{2}`
  • b) `PSin\frac{θ}{2}`
  • c) `PCos\frac{θ}{2}`
  • d) `2PCos\frac{θ}{2}`

  • d) `2PCos\frac{θ}{2}`

Q9.  The resultant of two forces each equal to P and acting at right angles is

  • a) `\sqrt{\frac{P}{2}}`
  • b) `\sqrt{\frac{2}{P}}`
  • c) `\sqrt 2{P}`
  • d) None of these 

  • c) `\sqrt 2{P}`

Q10 Magnitude of null vector is 

  • a) 1
  • b) 0
  • c) 90
  • d) 180

  • b) 0

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