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Physics Class 11 - Chapter 2
Vectors And EquilibriumTest - 4
1.
The cross product of j’xk’ is?
a) i’
b) k’
c) 1
d) j’
2.
Three coplaner forces acting on a body keep it in equilibrium they should be?
a) Perpendicular
b) Concurrent
c) Non parallel
d) Parallel
3.
It is easier to turn a steering wheel with both hands than with a single because?
a) Torque is produced in the body in that direction
b) Couple acts on the wheel
c) Equilibrium position is disturbed
d) All of these
4.
A body is complete equilibrium when it satisfy?
a) 2nd condition of equilibrium
b) Cant be possible such case
c) Both of these
d) 1st condition of equilibrium
5.
A body in equilibrium?
a) Always in motion
b) Always at rest
c) May be at rest or in uniform motion
d) May be at rest or in motion
6.
A central force is that which?
a) May or may not produce
b) Can produce torque
c) Can’t produce torque
d) Not specified reason
7.
Which one is not a type of dynamic equilibrium?
a) Rotational equilibrium
b) None of these
c) Translational equilibrium
d) Static equilibrium
8.
Which one the pair has equal dimensions?
a) Mass and moment of inertia
b) energy and work
c) Force and velocity
d) All of these
9.
Which one the pair has not same dimensions?
a) Force and velocity
b) Momentum and impulse
c) Torque and energy
d) Work and energy
10.
The dot product of j’.i’ is always?
a) 0
b) i’
c) k’
d) j’
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