MCQS of Physics for NTS Set 3

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MCQS of Physics for NTS


Two bodies with masses MA and MB are moving with equal kinetic energy.Their linear moments are numerically in a ratio | PA| : |PB| will be:
MB MA
MA2 MB2
MAMB
?

The motion without consideration of its cause is studied in:
Mechanics
Modern Physics
Kinematics
Statics

Center of mass is a point
Which is geometric center of a body
From which distance of particles are same
Which is the origin of reference frame
Where the whole mass of the body is supposed to be centered

A p-n junction has a thickness of the order of
1 cm
10-12 cm
1 mm
10-6 cm

The part of a transistor which is heavily doped to produce large number of majority carriers is
Collector
Any of the above depending on nature of transistor.
Emitter
Base

Angular momentum is
None of these
Scalar
Vector (polar)
Vector (axial)

Blood has a density
Equal to water
Lesser then water
Greater then water
None of these

A man pushes a wall but fails to displace it. He does:
Negative work
No work
Positive work but not maximum
Maximum positive work

If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will
Increase
Remain the same
Decreases
First ‘A’ then ‘B’

What is the average energy of N molecules of monoatomic gas?
5/2 NkT
1/2 NkT
NkT
3/2 NkT

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