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Physics Mcqs

Which of the following pairs does not have identical dimensions ?

  • (A)  Torque and energy
  • (B)  Momentum and impulse
  • (C)  Energy and work
  • (D)  Mass and moment of inertia
Submitted By :Ali Uppal


Three coplanar forces acting on a body keep it in equilibrium. They should therefore be_______________?

  • (A)  Concurrent
  • (B)  Non-concurrent
  • (C)  Parallel
  • (D)  Non-parallel
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Which one is not correct for a vector A= 2i+2j+3k ?

  • (A)  Has direction 45° with an x-axis
  • (B)  Has magnitude 2
  • (C)  Has magnitude 2 and direction °=45° with a y-axis
  • (D)  Has magnitude -2
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Cosθi^ + Sinθj^ is a_________________?

  • (A)  Vector
  • (B)  Position Vector
  • (C)  Vector in the direction at angle θ with an x-axis
  • (D)  The unit vector in the direction at angle θ with an x-axis
Submitted By :Ali Uppal


Submitted By :Ali Uppal


The rectangular coordinate system is also called______________?

  • (A)  Polar coordinate system
  • (B)  Cartesian coordinate system
  • (C)  Cylindrical coordinate system
  • (D)  Spherical coordinate system
Submitted By :Ali Uppal


Two vectors are A = 3i^+2j^ -k^& B = 3i^-2j^ +k^ , then_____________?

  • (A)  B is anti-parallel to A
  • (B)  B is a negative vector of A
  • (C)  B has a negative magnitude
  • (D)  B is perpendicular to A
Submitted By :Ali Uppal


In which quadrant the two rectangular components of a vector have same sign ?

  • (A)  1st
  • (B)  2nd
  • (C)  Both 1st and 3rd
  • (D)  4th
Submitted By :Ali Uppal