Physics test #3 for paf navy army nts | Many selection centre

1.

P type materials consists of ______________.
a.
Electrons
b.
Protons
c.
Holes
d.
Positrons


 2.

The force exerted on a unit area is called ___________.
a.
Mass
b.
Pressure
c.
Strain
d.
Stress


 3.

Time period is reciprocal of____________.
a.
Velocity
b.
Density
c.
Volume
d.
Frequencey


 4.

The rateof change of displacement is called _____________.
a.
Acceleration
b.
Speed
c.
Velocity
d.
Uniform velocity


 5.

The floating of a inertia depends upon ___________.
a.
Newton’s
b.
Archemadus
c.
Pascal’s
d.
Hook’s


 6.

The unit of inertia depends upon ____________.
a.
Force
b.
Displacements
c.
Mass
d.
Stress


 7.

Vector have _____________ components.
a.
Horizontal
b.
Vertical
c.
Rectangular
d.
Both a & b


 8.

The product of velocity and mass is called ___________.
a.
Displacement
b.
Force
c.
Momentum
d.
Torque


 9.

The force exerted on mechine is called ______________.
a.
Input
b.
Output
c.
Input/Output
d.
Output/Input


 10.

Which instrument is used to measure current?
a.
Galvanometer
b.
Ammeter
c.
Potentiomater
d.
Voltmeter





 11.

In equation E= Mc2 , c represents ____________.
a.
Veocity of sound
b.
Velocity of air
c.
Velocity of light
d.
None


 12.

The sum of neutrons and protons in a uncleus are called ____________.
a.
Atomic no.
b.
Mass no.
c.
Whole no.
d.
Avogadro no.


 13.

Astronomicla telescope consists of _________ points.
a.
One
b.
Two
c.
Three
d.
Infinite


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