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Online Tests
MDCAT Physics Online Test MCQs With Answers
Question # 1
The chemical changes produced in a liquid depends upon
Choose an answer
Nature of the liquid
Quantity of electricity passed
Time for which the current passing
All of them
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Question # 2
In mutual induction, the mutual inductance of the two coils depends upon
Choose an answer
Number of turns
Area of cross section of coil
The distance between the two coils
All of them
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Question # 3
Vectors are those physical quantities which requires
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Magnitude
Magnitude and directions
Direction
None of these
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Question # 4
Period of vibration of an atom in a solid is
Choose an answer
1 × 10
-10
sec
1 × 10
-13
sec
1 × 10
-16
sec
1 × 10
-19
sec
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Question # 5
The colour of platinum wire changes to yellow at
Choose an answer
1000°C
1200°C
1300°C
1800°C
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Question # 6
Which of the following is conserved when light waves interfere
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Intensity
Energy
Amplitude
Momentum
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Question # 7
Which of the following phenomenon proves the particle nature of light?
Choose an answer
interference
diffraction
photoelectric effect
none of them
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Question # 8
In space sound waves cannot travel because there is:
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Air
Gravity
Light
Vaccum
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Question # 9
If Young s double slit experiment is immersed in water then the fringes with
Choose an answer
Decreases
Remains unchanged
Becomes infinite
Increases
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Question # 10
If voltage of 3.5 is applied to gate it will accept it as
Choose an answer
Low
High
Maximum high
None of these
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Question # 11
Pauli's exclusion principle states that no two atomic electrons can:
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Be in the same orbital
Be in the same shell
Have same values of all the quantum numbers
Have same angular momentum
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Question # 12
Aluminium is a:
Choose an answer
Good insulator
Bad conductor
Both A and B
Excellent conductor
Semi conductor
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Question # 13
The magnitude of i
2
in scalar product is
Choose an answer
Zero
1
Less than 1
Greater than 0
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Question # 14
When m
2
>> m
1
and V
2 = 0 then result of their velocities
Choose an answer
V
2
= 0 and V
1
= V'
1
V'
1
= -V
1
and V'
2
= 0
V
1
= V
1
and V
2
= 0
None of these
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Question # 15
The velocity-time graph is a horizontal straight line when the velocity of the car is
Choose an answer
zero
constant
decreasing
increasing
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Question # 16
Frequency is the term used for
Choose an answer
Number of vibrations for second
Time to take one vibration
Number of vibrations per minute
None of these
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Question # 17
The unit of torque in SI system is
Choose an answer
Newton-meter
Dyne-meter
Newton
Joul
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Question # 18
The wave form of SHM is
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Pulsed wave
Square wave
Triangular waved
Sine wave
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Question # 19
Exclusive NOR gate can be obtained by inverting the output of
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XOR gate
NOT gate
AND gate
None of these
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Question # 20
Polymers have chemically combinations with
Choose an answer
Carbon
Nitrogen
Hydrogen
All of them
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Question # 21
Wave nature of particle was proposed by
Choose an answer
Einstein
plank
de-Brogile
Maxwell
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Question # 22
A typical rocket consumes about
Choose an answer
100 kg s
-1
of fuel
1000 kg s
-1
of fuel
10000 kg s
-1
of fuel
100000 kg s
-1
of fuel
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Question # 23
Two row boats moving parallel in the same direction and pulled toward each other due to the application of Bernoulli's equation
Choose an answer
Stake's theorem
Toricelli's theorem
Venturi relation
None of these
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Question # 24
Direct current cannot flow through the capacitor continuously because of
Choose an answer
Dielectric
Vacuum
Insulating medium
None of these
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Question # 25
Time:
Choose an answer
Is an absolute quantity
Is relative
Depends upon motion of frame of reference
All of above
None of these
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Question # 26
When the difference between the frequencies of two tuning forks is 10, then
Choose an answer
we will hear 10 beats per second
we will hear 5 beats per second
we will hear 20 beats per second
it becomes difficult to recognize the beats
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Question # 27
The relation for the adiabatic change is
Choose an answer
PV = Constant
PV
2
= Constant
PV
r
= Constant
PV
-r
= Constant
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Question # 28
The dimensional formula of light year is
Choose an answer
LT
-1
T
ML
2
T
-2
L
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Question # 29
In an adiabatic process
Choose an answer
Temperature remains constant
Volume remains constant
No change of internal energy
No heat enters for leaves the system
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Question # 30
For the conversion of heat into work, the two bodies are essential as temperature which is
Choose an answer
Similar
Very little difference
Large difference
None of these
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Question # 31
The emf produce by motion of a coal across a magnetic field is called
Choose an answer
Induced emf
Self induced emf
Motional emf
emf
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Question # 32
The mass of fissionable material required for self sustaining chain reaction is called the
Choose an answer
atomic mass
fermi mass
critical mass
super critical mass
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Question # 33
The magnitude of the drift velocity is of the order of:
Choose an answer
10
-6
ms
-1
10
-3
ms
-1
10
3
ms
-1
10
6
ms
-1
None of these
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Question # 34
The devices in the circuit that consume electrical energy are known as
Choose an answer
Inductor
Capacitor
Load
None of these
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Question # 35
An un-power and un-guided missile is called a
Choose an answer
rocket
ballistic missile
guided missile
none of them
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Question # 36
A beams of electrons and protons move parallel to each other in the same direction then they:
Choose an answer
Attract each other
Repel each other
No relation
Neither attract nor repel
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Question # 37
Momentum is a parameter associated with
Choose an answer
wave motion
particle motion
neither wave nor particle motion
none of them
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Question # 38
If one ampere current flows through long conductor terminal, the potential change is
Choose an answer
negative
positive
zero
none of them
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Question # 39
An ammeter requires 50 μA for full scale deflection it is to be converted into a voltmeter to read 10 volt at full range what resistance should be connected in series with the ammeter
Choose an answer
200 KΩ
400 KΩ
600 KΩ
800 KΩ
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Question # 40
1 year = ______.
Choose an answer
3.1536 x 10
7
s
3.1536 x 10
-7
s
3.1536 x 10
10
s
3.1536 x 10
-10
s
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Question # 41
The first band indicates the
Choose an answer
first digit
zero digit
decimal multiplier
first two digits
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