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 Hard Mode MCQs With Answers
Question # 1
Which quantity is increased in step-down transformer?
Choose an answer
Current
Voltage
Power
Frequency
Previous
Skip
Next
Question # 2
The time period of a simple pendulum is 2 seconds if its length is increased by 4 times then its period becomes
Choose an answer
16 s
12 s
8 s
4 s
Previous
Skip
Next
Question # 3
A person standing near the track of a fast moving train has tendency to fall towards it because of
Choose an answer
Vibration due to motion of train
Gravitation force of attraction between person and trains
The high speed of train
Some other effect
Previous
Skip
Next
Question # 4
In LCR series AC circuit the phase angle between current and voltage is
Choose an answer
Any angle between 0 and ±π/2
π/2
π
Any angle between 0 and π/2
Previous
Skip
Next
Question # 5
The sieman is the SI unit of
Choose an answer
Resistance
Specific Resistance
Conductance
Inductance
Previous
Skip
Next
Question # 6
A photocell with a constant p.d of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1 m, the electrons emitted by the photocell
Choose an answer
Carry 1/4th their previous energy
Are 1/6th as numerous as before
Are 1/4th as numerous as before
Carry 1/4th their previous momentum
Previous
Skip
Next
Question # 7
A capacitor acts as an infinite resistance for
Choose an answer
AC
DC
Both AC and DC
Previous
Skip
Next
Question # 8
Absolute temperature can be calculated by
Choose an answer
Mean square velocity
Motion of the molecule
Both (A) and (B)
None of these
Previous
Skip
Next
Question # 9
Which of the following four statements is false?
Choose an answer
A body can have zero velocity and still be accelerated
A body can have a constant velocity and still have a varying speed
A body can have a constant speed and still have a varying velocity
The direction of the velocity of a acceleration is constant
Previous
Skip
Next
Question # 10
Who explained the origin of the Fraunhofer lines?
Choose an answer
Fraunhoffer
Kirchhoff
Fresnel
Snell
Previous
Skip
Next
Question # 11
Huygen's wave theory of light cannot explain
Choose an answer
Diffraction
Interference
Polarization
Photoelectric effect
Previous
Skip
Next
Question # 12
In which of the following states does the incandescent substance give continuous spectrum?
Choose an answer
Vapours in atomic state
Vapours in molecular state
Solid or fluid in bulk state
Solid or fluid in plasma state
Previous
Skip
Next
Question # 13
Light appears to travel 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 # 14
Which one of the following is a simple harmonic motion?
Choose an answer
Wave moving through a string fixed at both ends
Earth spinning about its own axis
Ball bouncing between two rigid vertical walls
Particle moving in a circle with uniform speed
Previous
Skip
Next
Question # 15
The product of the pressure and volume of an ideal gas is
Choose an answer
A constant
Approximately equal to the universal gas constant
Directly proportional to its temperature
Inversely proportional to its temperature
Previous
Skip
Next
Question # 16
Energy is stored in the choke coil in the form of
Choose an answer
Heat
Magnetic energy
Electric energy
Electro-magnetic energy
Previous
Skip
Next
Question # 17
How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s
2
?
Choose an answer
1000 liters
1200 liters
100 liters
2000 liters
Previous
Skip
Next
Question # 18
What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
Choose an answer
4 : 5
7 : 9
16 : 25
1 : 1
Previous
Skip
Next
Question # 19
For production of beats the two sources must have
Choose an answer
Different frequencies and same amplitude
Different frequencies
Different frequencies, same amplitude and same phase
Different frequencies and same phase
Previous
Skip
Next
Question # 20
What remains constant when the earth revolves around the sun?
Choose an answer
Angular momentum
Linear momentum
Angular kinetic energy
Linear kinetic energy
Previous
Skip
Next
Question # 21
For obtaining appreciable extension, the wire should be
Choose an answer
Short and thin
Long and thin
Short and thick
Long and thick
Previous
Skip
Next
Question # 22
At constant volume temperature is increased. Then
Choose an answer
Collision on walls will be less
Number of collisions per unit time will increase
Collisions will be in straight lines
Collisions will not change
Previous
Skip
Next
Back