Lakshya Education MCQs

Question: In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
Options:
A. Increase
B. Decrease
C. Remain the same
D. None of these
Answer: Option B

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Question 1. Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. the forces are equivalent to a couple whose moment is equal to
  1.     Area of the triangle
  2.     Twice the area of the triangle
  3.     Half the area of the triangle
  4.     None of these
Answer: Option B
Question 2. The m.i. of hollow circular section about a central axis perpendicular to section as compared to its m.i. about horizontal axis is
  1.     Same
  2.     Double
  3.     Half
  4.     Four times
Answer: Option B
Question 3. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2.
  1.     Equal to
  2.     Less than
  3.     Greater than
  4.     None of these
Answer: Option C
Question 4. Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. the forces are equivalent to a couple whose moment is equal to
  1.     Area of the triangle
  2.     Twice the area of the triangle
  3.     Half the area of the triangle
  4.     None of these
Answer: Option B
Question 5. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2.
  1.     Equal to
  2.     Less than
  3.     Greater than
  4.     None of these
Answer: Option C

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