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
MDCAT Physics Online Test MCQs With Answers
Question # 1
Unlike poles of two magnets
Choose an answer
Attract
Repel
Neither attract nor repel
Noen fo these
Previous
Skip
Next
Question # 2
The typical speed of human running is
Choose an answer
1 ms
-1
2 ms
-1
4 ms
-1
5 ms
-1
Previous
Skip
Next
Question # 3
In p-type semi-conductor the majority charge carriers are
Choose an answer
Electrons
Holes
Neutrons
Protons
Previous
Skip
Next
Question # 4
In case of a forced vibration the resonance becomes very sharp when the
Choose an answer
Restoring force is small
Applied periodic force is small
Quality factor is small
Damping force is small
Previous
Skip
Next
Question # 5
When a platinum wire is heated, it appears white at
Choose an answer
1600
°C
900
°C
1100
°C
1300
°C
Previous
Skip
Next
Question # 6
The velocity of sound at t°C is given by the relation
Choose an answer
V
t
= V
0
+ 0.61 t
V
t
= V
0
+ 61 t
V
0
= V
t
+ 6 t
None of these
Previous
Skip
Next
Question # 7
Nicrom wire is an example of
Choose an answer
Non ohmic device
Ohmic device
Neutral device
Charged device
Previous
Skip
Next
Question # 8
The theory which explains the vast diversity in an electrical behaviour of all types the materials is
Choose an answer
Free electron theory
Band theory
Theory based as chemical properties
None of these
Previous
Skip
Next
Question # 9
The substances in which, atom are so oriented that their field support each other and the atoms behave like tiny magnets, are called
Choose an answer
diamagnetic substances
ferromagnetic substances
paramagnetic substances
all of them
Previous
Skip
Next
Question # 10
Coplanar forces are those, which act on a
Choose an answer
Single plane
All planes
Common plane
None of these
Previous
Skip
Next
Question # 11
By ampere s law we can computer
Choose an answer
Direction of magnetic field
Direction of magnetic force
Magnetic flux density
Magnetic flux
Previous
Skip
Next
Question # 12
On increasing the reverse voltage in a P-N junction diode the value of reverse current will
Choose an answer
Gradually increase
Suddenly increase
Remains constant
Gradually decrease
Previous
Skip
Next
Question # 13
The range of theβ-particle is more than theα-particle about
Choose an answer
400 times
200 times
100 times
None of these
Previous
Skip
Next
Question # 14
Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?
Choose an answer
Refraction
Reflection
Diffraction
Formation of spectrum
Previous
Skip
Next
Question # 15
Total energy of a particle executing S.H.M of amplitude A is proportional to
Choose an answer
A
2
A
-2
A
A
-1
Previous
Skip
Next
Question # 16
Angular acceleration is produced in a body by the physical quantity called
Choose an answer
momentum
vibration
torque
centrifugal force
Previous
Skip
Next
Question # 17
Above the curie temperature, iron becomes
Choose an answer
ferromagnetic
paramagnetic
diamagnetic
any one of them
Previous
Skip
Next
Question # 18
Light appears to travels in straight lines since
Choose an answer
It is not absorbed by the atmosphere
It is reflected by the atmosphere
Its wavelength is very small
Its velocity is very large
Previous
Skip
Next
Question # 19
Transverse waves can be set up in:
Choose an answer
Solids
Liquids
Gases
All of them
Previous
Skip
Next
Question # 20
Electric field lines emerge from the changes in:
Choose an answer
One dimension
Two dimensions
Three dimensions
Your dimensions
None of these
Previous
Skip
Next
Question # 21
If band gap between valence and conduction band material is 5 eV. The material is
Choose an answer
Insulator
Good conductor
Semiconductor
Such material are not exist
Previous
Skip
Next
Question # 22
The ratio of the r.m.s value of the applied voltage to the r.m.s value of resulting a.c.is
Choose an answer
Impedance
Inductance
Reactance
Resistance
Previous
Skip
Next
Question # 23
The light pulse form a helium-neon laser is
Choose an answer
monochromatic
coherent
intense
all of them
Previous
Skip
Next
Question # 24
If v is the velocity of flow of liquid through a tube of area of cross-section A then according to equation of continuity
Choose an answer
v/A = constant
A/v = constant
Av = constant
None
Previous
Skip
Next
Question # 25
Which of the energy of photon is detectable
Choose an answer
Radio waves
Microwave
γ
-rays
All of these
Previous
Skip
Next
Question # 26
Adiabatic change occurs when the gas expands or compresses when contained in an insulated cylinder
Choose an answer
Slowly
Very slowly
Rapidly
None of these
Previous
Skip
Next
Question # 27
At higher temperature, the body emits short wavelengths in the region
Choose an answer
Infra red
Ultraviolet
Far-infra red
None of these
Previous
Skip
Next
Question # 28
When the path difference between the two waves is an odd integral multiple of half of the wavelength then the two waves
Choose an answer
are added up
cancel each other effect
are independent of each other
none of them
Previous
Skip
Next
Question # 29
The thermodynamics scale of temperature starts from
Choose an answer
273 K
zero
273.16 K
None of these
Previous
Skip
Next
Question # 30
The rightward forces acting on a body in equilibrium are taken as
Choose an answer
negative
positive
either negative or positive
none of them
Previous
Skip
Next
Question # 31
The materialization of energy takes place in which phenomenon?
Choose an answer
Annihilation
Pair Production
Compton Effect
Photoelectric Effect
Previous
Skip
Next
Question # 32
Electric field lines emerge the charges in
Choose an answer
One dimension
Two dimensions
Three dimensions
None of these
Previous
Skip
Next
Question # 33
Current provided by a battery is maximum when
Choose an answer
Internal resistance equal to external resistance
Internal resistance is greater than external resistance
Internal resistance is less than external resistance
None of these
Previous
Skip
Next
Question # 34
The percentage errors in the measurements of mass and speed are 2% and 3% respectively.How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed.
Choose an answer
11%
8%
5%
1%
Previous
Skip
Next
Question # 35
The pair of quantities has same dimensions?
Choose an answer
Power, Work
Work, Torque
Impulse, Linear momentum
Both B and C
Previous
Skip
Next
Question # 36
Due to the break down the p - n junction suffers
Choose an answer
Works efficiently
Damaged
Require more current
None of these
Previous
Skip
Next
Question # 37
The area of the loop is the dissipated energy which do work against friction of domains is called
Choose an answer
Current loss
Voltage loss
Hysteresis loss
None of these
Previous
Skip
Next
Question # 38
When a constant force is applied on a body it moves with uniform
Choose an answer
Acceleration
Velocity
Speed
Momentum
Previous
Skip
Next
Question # 39
If the current is doubled,the deflection is also doubled in
Choose an answer
A tangent galvanometer
A moving coil galvanometer
Both (A) and (B)
None of these
Previous
Skip
Next
Question # 40
If the mass of the uranium is much greater than the critical mass, then the chain reaction proceeds at
Choose an answer
Very slow speed
High speed
Rapid speed
None of these
Previous
Skip
Next
Question # 41
Total energy of a body executing SHM is directly proportional is
Choose an answer
Square root of amplitude
The amplitude
Reciprocal of amplitude
Square of amplitude
Previous
Skip
Next
Back