PPSC Test Physics Subject 2019 with Full Book Download in PDF

PPSC Test Physics

PPSC Test Physics Subject 2019 with Full Book Download in PDF


Physics is the branch of science which focuses on matter and motion, and how they interact with one another.This subject is one of the basic branches of science. and each of physics’ sub visions had evolved to be applied in different branches of science Today, many students will find physics as a mind boggling subject except for a select few who find it fascination Therefore, for a student who sees physics as an amazing subject and wishes to study it further, it is a great option.

1.  Which  Country  allowed  women  for  driving recently?

(A) Malaysia (B) Indonesia
(C)  Saudi-Arabia    (D) None of these

2.  Physics deals with the study of

(a)      Matter and Energy
(b)     Outer atmosphere
(c)      Matter and Energy and their relationship
(d)      None of these

3.  Astrophysics  is the branch of physics deals with the

(a)     Physics of oceans
(b)     Physics of stars and galaxies
(c)     Physics of earth crust
(d)     None of these

4.  Plasma physics Is the branch of physics deals with the

(a)  Atoms  · (b) Molecules
(c)   Ions         (d)  None of these

5.  Which  branch of physics that  applies the physics laws to life formations?

(a)   Biophysics
(b)   Thermo physics
(c)   Solid state physics
(d)   None of these

6.  Classical physics is still valid in

(a)   Very small particles
(b)   Fast moving particles
(c)   Ordinary process
(d)   None of these

7.  The concept of position is purely

(a)   Specific (b)   Relative
(c)   Ordinary (d)   None of these

8.  A frame of reference is any coordinate system to which measurements are taken as

(a)   Correctly    (b)   Specifically
(c)   Relative    (d)   None of these

9.  An accelerated frame of reference is called

(a)   Inertial frame
(b)   Non-inertial frame
(c)   Not a and b
(d)   None of these

10.  Life span of white blood cells is:

(A) 2 days        (B) 4 days
(C) 6 days        (D) 13 days

11.  General theory of relativity is applicable in the

(a)    Inertial frame of reference
(b)    Non-inertial frame of reference
(c)    Both frames of reference
(d)    None of these

12.  The postulates of special theory of relativity in which

(a)    laws of physics are same
(b)   Speed of light is universal
(c)   Mass Is conserved
(d)   a and b

13. time dilation Is the result of special theory of relativity in which

(a)   times increases
(b)   time decreases
(c)   Remains the same
(d)   None of these

14.  According to special theory of relativity,time is not a absolute quantity, depending upon the

(a)   Inertial frame
(b)   Non-inertial frames
(c)   Motion of the frame of reference
(d)   None of these

15.  The proper time measured in

(a)   Inertial frame
(b)   Non-inertial frame
(c)   Stationary frame
(d)   None of these

16.  The  time  dilation  result  applies  to  all  timing processes like

(a)    Physical
(b)   Chemical
(c)   Biological
(d)   All of these

17.  At  higher  temperature,  the  body emits short wavelengths in the region

(a)    Infra red      (b)   Ultraviolet
(c)    Far-infra red (d)  None of these

18.  A body termed as black body when it

(a)    Reflects all radiations
(b)    Absorbs all radiations
(c)    Absorbs and radiates all radiations
(d)    None of these

19.   Application of photoelectric effect is

(a)   Photo diode  (b)  Photo translator
(c)   Photocell          (d)   None of these

20.  In photocell, the sodium or potassium cathode emits electrons for

(a)   Visible light (b)    Infrared light
(c)   Ultraviolet (d)    None of these

21.   Cesium coated oxide silver emits electrons for

(a)   Invisible light    (b)    Infrared light
(c)   Visible light    (d)   None of these

22.  Application; for photocells is I are

(a)    Automatic street lighting
(b)    Exposure meter for photography
(c)    Sound track of movies
(d)    All of these

23.  A 50 kV photon is Compton scattered by a quar-free  electron   if  the  scattered  photon comes off at 45°, what is its wavelength?

(a)   0.0025 nm (b)  0.255 nm
(c)   0.0255 nm (d)  None of these

24.   A phenomenon in wh1ch a low energy photon Interact with metal and usually absorbed with the emission of an electron is known as

(a)   Compton effect            (b)  Part production
(c)   Photoelectric effect            (d)   None of these

25.  A phenomenon in which a high energy photon scattered by an atomic e electron and transfer a part of is energy is known as

(a)   Photoelectric effect     (b)   Compton effect
(c)   X-rays                    (d)    None of these

26.   A very high energy photon (‘·rays) interact with matter and changes into

(a)    Electron
(b)    Positron
(c)    Parr of electron and pos1tron
(d)   None of these

27.  When a very high energy photon inter act with matter, it changes into two material particles IS known as

(a)   Compton effect            (b)   Pair production
(c)   Photoelectric effect            (d)   None of these

28.   A positron Is a particle having

(a)     Mass equal to electrons
(b)    Charge equal to electron
(c)    Equal but opposite charge
(d)    a and c

29.  The phenomenon  of pair production  takes in the

(a)     In the absence of any field
(b)     Electric field
(c)     Magnetic field
(d)     None of these

30.  The  phenomenon  of  pair  production  is also called

(a)    Photoelectric effect              (b)   Compton effect
(c)    Materialization of energy     (d)  None of these

31. The existence of poSitron was predicted by Dirac Ill

(a)   1923      (b)   1927
(c)   1928      (d)    1929

32.   The discovery  of pos1tron was made by Carl Aderson 1n cosmrc rays in

(a)   1928         (b)    1932
(c)    1933 (d)   1934

33.  Light IS it short the most refined form of

(a) Water   (b)   Matter
(c)   Heat         (d)  None of these

34.  The diffraction patterns can also  been observed in Dvission and Germer expenment With

(a)   Hydrogen atoms (b)   Helium atoms
(c)   Protons              (d)  All of these

35.  Electron microscope makes pl’acbcal use  of the wave nature of electrons which Is shorter than visible ltght 1s

(a)    Hundred bme
(b)    Thousand time
(c)    Several thousand lime
(d)    None of these

36.  ln an electron microscope  rnstead of optJcal lenses some field/fields are used to focus electrons are

(a)    Electric field
(b)   Magnetic field
(c)   Electric and magnetic fields
(d)   None of these

37.  The high energy electrons penetrate the speCimen to reasonable thickness and aoqurre 

(a) sufficient energy due to Its Short wavelength
(b)   Extremely short wavelength
(c)   Long wavelength
(d)   None of these

38. A 50 kV microscope gives the resolution of

(a)   0.4 to 2 nm (b)   0 3 to 3nm
(c)   0.5 to 1nm (d)  None of these

39. The  best  optical  resolution  is  made  by  the microscope Is
(a)   Q1 (b) Q2
(c)   0.3 (d)   None of these
40.  The photograph taken by the electron microscope is known as
(a)   Photograph
(b)   Electron micrograph
(c)   Chronograph
(d)   None of these
41.  Threshold frequency of light is explained by
(a)  Classical theory (b)   Quantum theory
(c)   EM theory         (d)   None of these
42.  Black body emitting radiation in
(a)  Visible region (b)   Invisible region
(c)   a and b         (d)   None of these
43.  A photon Is always considered to be
(a)     At rest
(b)    Moving with speed of light
(c)    In accelerated form 
(d)    None of these
44.  The  screen  used  In  electron  microscope  is made of
(a)   Reftecting matenal
(b)   Absorb1ng  material
(c)   Fluorescent material
(d)   Transparent material
45.  Who discovered the idea of Ether
(a)   Schrodinger
(b)   De-Broglie
(c)   Michelson and Morley
(d)   None of these
46.  Can pa1r  production  takes  place In vacuum because of conservation of
(a)    Energy
(b)    Momentum
(c)    Momentum and Energy
(d)    None of these
47.  Light year is a unit of
(a)  Tlme         (b)   distance
(c)   Light (d)   intensity of light
48. Light from the Sun reaches us in nearly
(a)   2 minutes (b)  4 minutes
(c)   8 minutes (d)   16 minutes
49.  Natural radioactivity was discovered by
(a)   Marie Curie         (b)   Ernest Rutherfor
(c)   Henri Becquerel (d)   Enrico Fenni
50.  One nanometer is equal to
(a)   10-6m (b)   10-8m
(c)   10-9m (d)   10-Sm

About Muhammad Usman Younas

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