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MDCAT Physics Online Test MCQs With Answers
Question # 1
Equal charges are given to two spheres of different radii,The potential will
Choose an answer
Be more on the smaller sphere
Be more on the bigger sphere
Be equal on both the sphere
Depend on the nature of the material of the sphere
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Question # 2
Which of the following can become a good permanent magnet?
Choose an answer
iron
steel
both of them
none of them
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Question # 3
pgh in Bernoulli's equation has unit of
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Volume
Force
Work/Volume
None of these
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Question # 4
Photodiode is always operated in the
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Forward condition
Reverse condition
Both
None of these
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Question # 5
According to classical theory the proposed circular path of an electron in Rutherford model of atom will be
Choose an answer
Circular
Straight line
Parabolic
Spiral
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Question # 6
Neutron is assumed to be made up of quarks
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One down two up
One up two down
Two down two up
None of these
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Question # 7
Sound travels faster in
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Hydrogen
Helium
Kerosene oil
Steel
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Question # 8
The energy of characteristic X-rays depends upon the
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Voltage applied
Type of target
Temperature
None of these
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Question # 9
The angle θ gives the states of the system its
Choose an answer
Vibrational cycle
Phase of vibration
Position of the particle in a circle
All of these
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Question # 10
One rad (radiation absorbed dose) is
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0.01 Gray
0.03 Gray
0.05 Gray
None of these
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Question # 11
Every gas behaves like an ideal gas at
Choose an answer
High temperature and low pressure
Low temperature and high pressure
Both A and B
None
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Question # 12
A substance which have empty conduction band is called
Choose an answer
Conductor
Insulator
Semiconductor
None of these
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Question # 13
Shunt resistance is called
Choose an answer
By pass resistor
Specific resistance
Reactance
None of these
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Question # 14
At high altitude the blood oozes out of the nose and ear because
Choose an answer
The blood pressure increase at high altitudes
The percentage of oxygen in the air increase
The atmospheric pressure decreases
The density of blood decrease at high altitudes
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Question # 15
In modulation process carrier waves combine with
Choose an answer
High frequency signal
Low frequency signal
Very low frequency
None of these
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Question # 16
When we jump out of a boat standing in water moves
Choose an answer
Forward
Backward
Sideways
None of these
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Question # 17
The body is in a dynamic equilibrium when it is
Choose an answer
At rest
In motion
In uniform motion
Acceleration motion
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Question # 18
The greatest stress that a material can endure without losing the proportionality between stress and strain is called
Choose an answer
Plasticity
Breaking point
Proportional limit
Strain
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Question # 19
In d.C. motor, the field coils with the armature coils are connected
Choose an answer
In parallel
In series
Both
None of these
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Question # 20
A particle performs simple harmonic motion find its maximum speed if its amplitude is 0.10 m and frequency 5.0 Hz
Choose an answer
9.08 ms
-1
5.50 ms
-1
1.25 ms
-1
3.14 ms
-1
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Question # 21
Average radiation doses by wearing radioactive luminous watch for a year is
Choose an answer
10 m Sv
30 m Sv
60 m Sv
70 m Sv
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Question # 22
Liver absorbed mostly the chemical which is
Choose an answer
Iron
Cobalt
Iodine
None of these
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Question # 23
When the particles of medium vibrate about their mean position, along the direction of motion of the waves, then the waves are called:
Choose an answer
Longitudinal waves
Transverse waves
Water waves
Complex waves
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Question # 24
The energy band gap is maximum in
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Metals
Superconductors
Insulators
Semiconductor
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Question # 25
Which of the following properties is not exhibited by X-rays
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Polarization
Deflection by electric field
Interference
Diffraction
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Question # 26
A wire 1 m long moves at 5 ms
-1
perpendicular to a uniform magnetic field of the intensity if 0.02Ω Wbm
-2
The potential difference induced across the ends of the wire is
Choose an answer
0.01 V
0.1 V
1.0 V
10 V
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Question # 27
Form the theory of relativity, momentum p of the photon is related to energy as
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p = hfc
p = hf/c
p = f(hc,f)
p = cf/h
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Question # 28
The results of mechanical tests are usually represents in terms of:
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Stress
Strain
Both A & B
None of these
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Question # 29
Newtons laws were published in
Choose an answer
1587
1687
1787
1678
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Question # 30
Another name for electric potential energy per unit charge is given by:
Choose an answer
Electric intensity
Potential gradien
Electric flux
Potential difference
None of these
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Question # 31
The resistance of ideal voltmeter is
Choose an answer
Zero
Infinite
Very small but not zero
Equal to resistance of galvanometer
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Question # 32
When two deuterons are merged to form a helium. The energy released during this process is
Choose an answer
15 MeV
20 MeV
24 MeV
28 MeV
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Question # 33
A ballistic missile is
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Unpowered
Unguided
Both
None of these
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Question # 34
Kinetic energy of rotation of the whole body is
Choose an answer
K.E.
rot
= lω
K.E.
rot
= lω
2
K.E.
rot
= l
2
ω
2
None of these
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Question # 35
When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
Choose an answer
circular
elliptical
cycloid
straight line
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Question # 36
β
-rays are infact fast moving electrons coming out from the
Choose an answer
Outside the nucleus
Inside the nucleus
As free electrons
None of these
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Question # 37
Exclusive NOR gate can be obtained by inverting the output of
Choose an answer
XOR gate
NOT gate
AND gate
None of these
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Question # 38
Range of β-particle in air is
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10 cm
1 meter
Several meters
None of these
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Question # 39
Quenching gas in Geiger counter:
Choose an answer
He
Ne
Kr
Br
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Question # 40
The brightness of the spot formed on the screen is controlled by the
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Electron
Proton
Potential
None of these
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Question # 41
In common emitter amplifier. When small signal voltage is applied at the input it changes the voltage at
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base
Emitter
Collector
None of these
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