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
At the maximum height the V
f
is
Choose an answer
Constant
Zero
Maximum
None of these
Previous
Skip
Next
Question # 2
A tube closed at one end containing air, produces, when excited, the fundamental note of frequency in Hz given that / = 1 m and V = 640 ms
-1
Choose an answer
256
128
512
160
Previous
Skip
Next
Question # 3
The winding of the electromagnet, is called
Choose an answer
coil
magnetic field
field coil
none of them
Previous
Skip
Next
Question # 4
If the angle of refraction is 90
o
, for which the angle of incidence is called
Choose an answer
Incident angle
Critical angle
Angle of emergence
None of these
Previous
Skip
Next
Question # 5
The ratio of volume stress/volume strain is called as
Choose an answer
modulus
Bulk modulus
shear modulus
Young's modulus
Previous
Skip
Next
Question # 6
RBE of Neutrons and protons below 10 MeV is
Choose an answer
0.5 RBE
10.0 RBE
0.8 RBE
1.7 RBE
Previous
Skip
Next
Question # 7
George Stoke found the effect of viscous drag on small sphere falling through liquids in
Choose an answer
1782
1851
1902
1947
Previous
Skip
Next
Question # 8
Unit of permeability of free space is
Choose an answer
Wba
-1
m
-1
NmA
-1
Nm°A
-2
Both a & c
Previous
Skip
Next
Question # 9
A steel bar can bear a load of 20 tons. If the thickness of bar is double, then for the same depression it can bear a load of:
Choose an answer
40 ton
80 ton
160 ton
5 ton
Previous
Skip
Next
Question # 10
The mass of eachα-particle is nearly
Choose an answer
Twice times the mass of hydrogen atom
Three times the mass of hydrogen atom
Four times the mass of hydrogen atom
Five times the mass of hydrogen atom
Previous
Skip
Next
Question # 11
What will be efficiency of carnot engine when it is operated between the temperatures 47
o
C and 127
o
C:
Choose an answer
Reversible
Irreversible
Sometimes A and B
None of these
Previous
Skip
Next
Question # 12
Swimming is possible on account of
Choose an answer
First law of motion
Second law of motion
Third law of motion
Newtons law of gravitation
Previous
Skip
Next
Question # 13
The original source of geothermal energy is
Choose an answer
Biomass
Fossil fuels
Moon
Earth
Previous
Skip
Next
Question # 14
The periodic waves are those which are
Choose an answer
Continuous
Regular
Rhythmic disturbance
All of these
Previous
Skip
Next
Question # 15
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 # 16
P-type crystal of a p-n junction diode is connected to a positive terminal of battery and n-types crystal connected to negative terminal of battery
Choose an answer
Diode is forward based
Diode is reverse biased
Potential barrier in depletion layer increases
Potential barrier in depletion layer remains unchanged
Previous
Skip
Next
Question # 17
If the metal bob in a simple pendulum is replaced by a wooden bob,then its time period will
Choose an answer
Increase
Decrease
Remain the same
First A then D
Previous
Skip
Next
Question # 18
The work done by the system on its environment is considered
Choose an answer
Natural
Positive
Negative
None of these
Previous
Skip
Next
Question # 19
The SI units of displacement is
Choose an answer
m
kg
ms
-1
None of these
Previous
Skip
Next
Question # 20
The difference between 1st ring fringe and 1st dark fringe is measured as
Choose an answer
λD/2d
λD/d
λD/4d
2λD/d
Previous
Skip
Next
Question # 21
For glass-air boundary, the value of the critical angle is
Choose an answer
42°
45°
30°
60°
Previous
Skip
Next
Question # 22
The electromagnetic force is long-range and causes
Choose an answer
Physical phenomenon
Chemical reactions
Can produce new product
None of these
Previous
Skip
Next
Question # 23
Range of β-particle in air is
Choose an answer
10 cm
1 meter
Several meters
None of these
Previous
Skip
Next
Question # 24
The torque acting upon a system is zero Which of the following will be conserved
Choose an answer
Linear momentum
Angular momentum
Moment of inertia
Angular velocity
Previous
Skip
Next
Question # 25
On the ground the gravitational force on a satellite is W. What is the gravitational force on the satellite when at a height R/50,where R is the radius of the Earth
Choose an answer
1.02 W
1.00 W
0.98 W
0.96 W
Previous
Skip
Next
Question # 26
The particles equal in mass or lighter than protons are
Choose an answer
Baryons
Mesons
Leptons
None of these
Previous
Skip
Next
Question # 27
Electron was discovered by
Choose an answer
R.(A) Millikan
J.J. Thomson
W. Crooks
Einstein
Previous
Skip
Next
Question # 28
The value of Boltzman constant is
Choose an answer
1.28 x 10
-22
JK
-1
1.38 x 10
-23
JK
-1
1.38 x 10
-28
JK
-1
1.35 x 10
-29
JK
-1
Previous
Skip
Next
Question # 29
In p-type semiconductor
Choose an answer
Major current carrier is electrons
Major carrier is mobile negative ions
Major carrier is mobile holes
The number of mobile holes exceeds the number of acceptors
Previous
Skip
Next
Question # 30
The field inside the solenoid is
Choose an answer
Weak
Strong
Very strong
None of these
Previous
Skip
Next
Question # 31
The lowlying Earth satellites have acceleration
Choose an answer
9.7 ms
-2
9.9 ms
-2
10.0 ms
-2
9.8 ms
-2
Previous
Skip
Next
Question # 32
In common emitter amplifier. When small signal voltage is applied at the input it changes the voltage at
Choose an answer
base
Emitter
Collector
None of these
Previous
Skip
Next
Question # 33
A heater coil rated at (1000W -200 V) is connected to 110 volt line what will be the power consumed?
Choose an answer
200 W
302.5 W
250 W
350 W
Previous
Skip
Next
Question # 34
The velocity of a body at some particular instant is called
Choose an answer
Initial velocity
Instantaneous velocity
Variable velocity
None of these
Previous
Skip
Next
Question # 35
A radioactivity element dissolved in a liquid and the solution is heated the activity of the solution
Choose an answer
Is smaller than that of the element
Is greater than that of the element
Is equal to that of the element
Will be smaller or greater depending upon whether the solution is weak or concentrated
Previous
Skip
Next
Question # 36
The resolving power of telescope depends on
Choose an answer
Focal length of eye lens
Focal length of objective lens
Length of the telescope
Diameter of he objective lens
Previous
Skip
Next
Question # 37
For the treatment of skin cancers, the isotopes/isotopes are used
Choose an answer
Phosphorous-32
Strontium-90
Both
None of these
Previous
Skip
Next
Question # 38
If the focal length of objective is 10 mm find its magnification
Choose an answer
18
19
20
21
Previous
Skip
Next
Question # 39
If no external torques act, the angular momentum of a body rotating about a fixed axis in two dimensions is
Choose an answer
Variables
Constant
Non conserved
None
Previous
Skip
Next
Question # 40
For a motor which is over loaded the magnitude of back emf
Choose an answer
becomes zero
get decreased
get increased
remains constant
Previous
Skip
Next
Question # 41
α,
β and
γ rays are emitted form a radio-active substance
Choose an answer
spontaneously
when it is heated
when it is exposed to light
when it interacts with the other particle
Previous
Skip
Next
Back