PPSC Physics Practice Test – Important MCQs with Correct Answers

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PPSC Physics Exam Free Preparation

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PPSC Physics Mcq's For Full Book

Try The PPSC Physics Mcq's For Full Book

  • Total Questions30

  • Time Allowed30

PPSC Physics Mcq's For Full Book

00:00
Question # 1

The diver spins faster when moment of inertia becomes

Question # 2

The first artificially produced nuclear transmutation was accomplished by.

Question # 3

Which parameter determines the brightness of a light source sensed by an eye.

Question # 4

In which of the following the loss of energy is less.

Question # 5

LASER is a device which can produce

Question # 6

The point midway between the lens surface on its participial axis

Question # 7

The dimensions of universal gravitational constant G are.

Question # 8

How does heat transfer between objects.

Question # 9

Andrews isothermal helps to messure

Question # 10

What is measured by the energy dissipated when a source drives a unit charge round a complete circuit.

Question # 11

On average there is no energy transfer in.

Question # 12

A pendulum vibrates with a time period of 1 s which range of sound is produced by it

Question # 13

Which term is used for the persistence of sound in a hall.

Question # 14

The polarization of an electromagnetic wave is determined by

Question # 15

A convex lens of focal length 6 cm to be used to from a virtual image three times the size of the object Where must the lens be placed.

Question # 16

Which of the following factor will not affect the speed of sound i a medium.

Question # 17

The maximum K.E. with which photoelectrons are emitted depends very strongly on the.

Question # 18

The pressure change in a confined incompressible fluid is transmitted equally in all directions throughout the fluid and to the walls of the container This is.

Question # 19

The image formed by a projector is

Question # 20

Ultrasonic sound waves

Question # 21

On which factor mutual induction of two coils does not depends upon.

Question # 22

In order to har an echo what is the minimum distance between the sound and reflecting surface.

Question # 23

A constant mass undergoes uniform acceleration the correct statement about the resultant force acting on the mass is.

Question # 24

For the normal operation of transistor the emitter base junction is always.

Question # 25

The phenomenon of interference occurs because waves obey

Question # 26

At room temperature the p.d. between the two sides of depletion region for germanium is of the order of.

Question # 27

A spectroscope sorts out

Question # 28

Who described an ideal heat engine in 1840

Question # 29

A Carnot engine has the same efficiency between (i) 100 K and 500 K and ii) T and 900 K What will be T.

Question # 30

Young's double slit experiment was performed in


Here is List Of Chapter Wise Tests

Ch. # Test Name MCQs Available PDF File Launch Test
1 0 Download PDF Launch Test
1 PPSC Physics Topic 1 Mechanics 368 Download PDF Launch Test
2 PPSC Physics Topic 2 Structural Properties of Matter 124 Download PDF Launch Test
3 PPSC Physics Topic 3 Thermal Properties of Matter 256 Download PDF Launch Test
4 PPSC Physics Topic 4 Geometrical Optics 222 Download PDF Launch Test
5 PPSC Physics Topic 5 Waves and Wave Properties of Light 294 Download PDF Launch Test
6 PPSC Physics Topic 6 Electricity and Magnetism 530 Download PDF Launch Test
7 PPSC Physics Topic 7 Modern Physics 403 Download PDF Launch Test
8 PPSC Physics Topic 8 Scientists, Their Inventions and discoveries 114 Download PDF Launch Test

Top Scorers of PPSC Physics Mcq's For Full Book

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    Ramsha Shabbir 23 - Apr - 2024 00 Min 16 Sec 28/30
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Sr.# Question Answer
1 Which temperature is required for the fusion of two nuclides.
A. 106 K
B. 107 K
C. 10 8 K
D. 10 9 K
2 The ability of eye to focus near as well as distant object is termed as.
A. Myopia
B. Persistence of vision
C. Power of accommodation
D. Astigmatism
3 Alternating current generator consists of a coil and a pair of.
A. Split rings
B. Slip rings
C. Metal rings
D. Copper rings
4 What for is semiconductor diode used.
A. To convert D.C. to A.C.
B. To convert A.C. to D.C.
C. To increase voltage
D. To decrease voltage
5 As a positively charged rod is brought closer and closer to a positively charged electroscope the gold leaf.
A. diverges
B. Converges
C. is neutralized
D. Is unaffected
6 What is the refractive power of cornea in humans.
A. 13 dioptres
B. 23 diaoptres
C. 33 dioptres
D. 43 dioptres
7 In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.
A. Radioactivity
B. Radioactivity dating
C. Nuclear fusion
D. Nuclear fission
8 The part of theory of relativity which deals with accelerated bodies is called.
A. special theory of relativity
B. General theory of relativity
C. Lorentz's theory of relativity
D. Galilean theory of relativity
9 A D.C Motor converts
A. Mechanical energy into electrical energy
B. Mechanical energy into chemical energy
C. Electrical energy into mechanical energy
D. Electrical energy into chemical energy
10 The typical value of forbidden energy gap in germinium is.
A. 0.7 eV
B. 1.0 eV
C. 1.4 eV
D. 10 eV
11 The process in which no heat enters or leaves the system is called.
A. Isdobaric
B. Isochoric
C. Isothermal
D. Adiabatic
12 Which law states that if two systems are in thermal equilibrium with a third system they are also in the thermal equilibrium with each other.
A. Third law of thermodynamics
B. Second law of thermodynamics
C. First law of thermodynamics
D. Zeroth law of thermodynamics
13 The ratio of intensities of two sound waves is 4 : 9 what will be the ratio of their amplitudes.
A. 9:4
B. 2:3
C. 3:2
D. 4:9
14 A slow neutron can cause fission in
A. Uranium -238
B. Uranium-235
C. Hydrogen-1
D. Thorium -232
15 The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.
A. The photoelectric effect
B. The zeeman effect
C. The Compton effect
D. Quantum effect
16 The centre of mass of a system is a point where an applied force causes the system to move.
A. With rotation
B. Without rotation
C. Fastly
D. Slowly
17 The dispersive power of a grating is
A. Light used
B. Separation of lines
C. Frequency of light used
D. Independent of wavelength
18 What do we study by crystallography.
A. The analysis of X ray spectra of elements and study of crystal structure.
B. Visible spectra of sources and crystal study
C. Ultraviolet spectra of sources and crystal study
D. Characteristics of X-rays
19 When speed of a moving body becomes double.
A. Its K.E. is doubled
B. Its acceleration is doubled
C. Its P.E. is doubled
D. Its momentum is double
20 The average amount of energy transported by a wave per unit area per unit time is termed as
A. Wave speed
B. Wave intensity
C. Wavelength
D. Wave amplitude
21 For total internal reflection the light rays enter
A. From rarer to denser medium
B. From, denser to rarer medium
C. Medium of same refractive index
D. At an angle 90 o
22 The perpendicular distance between the line of action of forces and the axis of rotation
A. Torque
B. Moment arm
C. Moment of force
D. Momentum
23 We can hear beats when the difference in the frequencies of two sounding bodies is not more than.
A. 2
B. 4
C. 6
D. 10
24 The force on a point charge due to electromagnetic fields is called.
A. Lorenz force
B. Gauss's force
C. Newton's force
D. Ampere's force
25 A diatomic gas contains only
A. Translational K.E.
B. Rotational K.E.
C. Vibrational K.E.
D. All of these
26 What is the value of earth's magnetics fields.
A. 5 G
B. 50 G
C. 100 G
D. 500 G
27 Who developed the first atomic reactor.
A. Bohr
B. Fermi
C. Rutherford
D. Taylor
28 The average energy released per fission of U is about
A. 200 eV
B. 2 keV
C. 2 MeV
D. 200 MeV
29 Alpha particles are
A. Helium nuclei
B. sodium nuclei
C. Ioized nuclei
D. Hydrogen nuclei
30 Gases have
A. Fixed shape
B. Fixed volume
C. Fixed shape and volume
D. No fixed shape and volume

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