More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Physics General Science Test Medium Mode MCQs With Answers
Question # 1
Which of the following is not a unit of power:
Choose an answer
J-sec
Watt
N m/sec
Horsepower
Previous
Skip
Next
Question # 2
Resolving power in mth order diffraction for grating is given by:
Choose an answer
R = N/m
R = m/N
R = N x m
None of these
Previous
Skip
Next
Question # 3
Phenomenon of radioactivity is due to disintegration of
Choose an answer
nucleus
neutron
proton
molecule
Previous
Skip
Next
Question # 4
Which one of the following has larger value of relative permitivity E
r
at room temperature?
Choose an answer
Vaccum
Air
Glass
Water
Previous
Skip
Next
Question # 5
The graphical representation of ohm's law is
Choose an answer
hyperbola
straight line
ellipse
parabola
Previous
Skip
Next
Question # 6
The direction of induced current is always so as to oppose the cause which produces it. This is
Choose an answer
Lenz's law
Ampere's law
Faraday's law
Coulomb's law
None of these
Previous
Skip
Next
Question # 7
Matter is made up of very tiny particles called
Choose an answer
Atoms
Molecules
Ions
None of these
Previous
Skip
Next
Question # 8
Which of the following does not obey ohm's law?
Choose an answer
Copper
Al
Diode
None
Previous
Skip
Next
Question # 9
In an A.C circuit with resistor only, the current and voltage have a phase angle of
Choose an answer
90
°
0
°
180
°
none of these
Previous
Skip
Next
Question # 10
A potential barrier of 0.7V exists across p-n junction made from:
Choose an answer
Germanium
Silicon
Arsenic
Gallium
Indium
Previous
Skip
Next
Question # 11
First law of thermodynamic is special case of
Choose an answer
Law of conservation of energy
Charle's law
Law of conservation of mass
Boyle's law
Previous
Skip
Next
Question # 12
To demonstrate the phenomenon of interference we require two sources that emit radiation
Choose an answer
Of same frequency
Different wavelength
Of the same frequency and having definite phase relationship
Of nearly the same frequency
Previous
Skip
Next
Question # 13
The electrical behavior of semiconductor depends on the material purity which is
Choose an answer
Sensitive
Extremely sensitive
Non-sensitive
None of these
Previous
Skip
Next
Question # 14
In diesel engine no sparking device and no need of
Choose an answer
Heavy current unit
Spark plug
Instant starting
None of these
Previous
Skip
Next
Question # 15
Which type of the following force cannot do work, acting on a body
Choose an answer
Electric force
Gravitational force
Frictional force
Centripetal force
Previous
Skip
Next
Question # 16
SI unit of angular moment is
Choose an answer
Kgms
-1
Kgm
2
s
-2
Kgm
2
s
-1
Kgm
3
s
-1
Previous
Skip
Next
Question # 17
To produce same acceleration in the bodies of masses 10 kg and 20 kg the force applied in the second body should be
Choose an answer
Halved
Equal for both bodies
Doubled
Three times
Previous
Skip
Next
Question # 18
Which of the following is conserved when light waves interfere
Choose an answer
Intensity
Energy
Amplitude
Momentum
Previous
Skip
Next
Question # 19
The idea of light as wave produced by
Choose an answer
Huygen
Newton
Thomos Young
Michelson
Previous
Skip
Next
Question # 20
If momentum is increased by 20% then K.E. increases by
Choose an answer
44%
55%
66%
77%
Previous
Skip
Next
Question # 21
The sky appears blue because
Choose an answer
Red light is absorbed
Blue light is scattered the most
Blue light is absorbed
It is its natural color
Previous
Skip
Next
Question # 22
Two forces are acting together on an object.The magnitude of their resultant is minimum when the angle between the force is:
Choose an answer
0°
60°
120°
180°
Previous
Skip
Next
Back