11th Physics MCQs Preparation 2022 and Onwards (Unit:  Measurements : Set-3 (50 MCQs)) for National MDCAT, ECAT, FPSC, PPSC, JOB Exam, Physics Lecturer, SSC, HSSC (F.Sc.), BS, MS Exams NTS, ETS, etc.



51. Which of the following is not a base unit in the SI system:




... Answer is D. Volume
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52. Which property of a solid object cannot be changed by the application of force?




... Answer is C. Mass
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53. Steradian is the SI unit of:




... Answer is C. `\19^{th}` Century
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54. The unit of mass is________ and its symbol is _______ which is the correct pair?




... Answer is B. kilogram, kg
Starts with a small letter


55.  What is the SI unit of constant η in the following equation? Where F=6ηrv, where F=force v=velocity r=radius.




... Answer is A. kg m⁻¹s⁻¹
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56. The SI units of pressure in terms of base units are




... Answer is C. kg m⁻¹s⁻²
P = F / A


57. Which one of the following is not regarded as a base quantity in Physics? :




... Answer is C. Hydrodynamics
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58. Steradian " sr " has a geometry in:




... Answer is C. Three dimensions
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59. Ampere second is a unit of:




... Answer is B. Charge
I = `\frac {q}{t}` So q = It = A S


60. erg/m can be the unit of the measure of:




... Answer is D. Force`
 F = W / d where the unit of Work is erg and distance is m


61. Which of the following quantity cannot be expressed as Nm⁻²




... Answer is A. Surface tension
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62. Which of the following unit is equal to a watt?




... Answer is D. A/V
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63. The unit of force and length are doubled, and the unit of energy will be:




... Answer is B. 4 times
-----W = Fd


64.  An alternate unit to kg m s⁻¹ is




... Answer is A. N s
🛆P = F 🛆t


65. The base quantity among the following is




... Answer is C. Length
There are seven base quantities: Mass, Length, Time, Electric Current, Amount of substance, Luminous intensity, Temperature


66.. 1M (mega) is equal to:




... Answer is A. 10⁶
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67. 1k (kilo) is equal to:




... Answer is C. 10³
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68. The prefix atto is equal to:




... Answer is A. `\10^{-18}`
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69. Which one is the highest power multiple?




... Answer is B. peta
1 peta = `\10_{15}`


70. A prefix femto is equal to:




... Answer is A. `\10^{-15}`
----------------------

71. One gigabyte is equal to:




... Answer is A. `\10^{9}` bytes
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72. Which one has the least power multiple?




... Answer is D. atto
1 atto = `\10^{-18}`


73. The ratio of 1µm/1Gm is equal to:




... Answer is C. `\10^{-15}`
1µm = `\10^{-6}` and 1Gm = `\10^{9}`


74. The ratio of 1µm/1Gm is equal to:




... Answer is B. 1Gm = `\10^{-6}`
1km = `\10^{3}` and 1Gm = `\10^{9}`


75.  Which of the following will have the smallest value?




... Answer is A. 1mm x 1 pm
1mm x 1 pm = `\10^{-12}``\m^{2}`


76. A second pendulum strikes in a day:




... Answer is D. 43200 times
The second pendulum has a time period of 2 s. There are 86,400 s in the day. By dividing 2 s we get 43,200


77. The metric prefix for 0.000001 is :




... Answer is B. micro
1 micro = 1/1000000 = 0.000001


78. 1⁰ = -------------




... Answer is A. 0.01745 radian
As we know that 57.3° = 1 radian; by unitary method; 1° = 1/57.3 radian = 0.01745 radian


79. In scientific notation, numbers are expressed in:




... Answer is A. Power of ten
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80. 86400 s can be written in scientific notation as?




... Answer is C. 8.64 x 10³ s
----------------------


81. How many nanometres in a metre




... Answer is C. `\10^{9}` m
1 nano = `\10^{-9}` So, 1 m = `\10^{9}`x `\10^{-9}` m = `\10^{9}`nm


82. 1 (km)² = -------------




... Answer is B. 1 ｘ10⁶ m²
1 km = 10³ m, By taking square (10³ m)² = 1 ｘ10⁶ m²


83. The time taken by light from the moon to earth is




... Answer is B. 1 min 20 sec
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84. The scientific notation of the number 0.0023 is expressed as




... Answer is C. 2.3 x 10⁻³
--------------------------------


85.  One kilometer is equal to:




... Answer is C. 1000 m
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86. 3.75 cm = _____




... Answer is A. 37.5 mm
1 cm = 10 mm


87. Which of the following is closest to the yard? :




... Answer is C. 1 m
1 yard = 3 feet = 0.9144m


88. Which of the following is not a correct representation method of prefixes?



... Answer is C. 1000 μ
-------------------------


89. One mile is equal to How much kilometre?




... Answer is B. 1.609 km
----------------------


90. The prefix deca is equal to:




... Answer is A. `\10^{1}`
 ----------------------


91. How many seconds are in 1 year in scientific notation:




... Answer is A. 3.154 x 10⁷ s
1 year = 365 x 24 x 60 x 50 s = 31536000 = 3.154 x 10⁷ s


92. One inch is equal to:




... Answer is C. 2.54 cm
----------------------


93. The quantity 3.75 x 10⁻³ can be written as:




... Answer is C. 0.00375
--------------------


94. How many years are there in one second:




... Answer is A. 3.171 x `\10^{-8}`
1 s = 1 / (365 x 24 x 60 x 50) years = 1/31536000 years = 3.171 x `\10^{-8}`


95.  The quantity 3.75 x 10³ can be written as:




... Answer is D. 3750
------------------------


96. If E = mc², the energy for the mass of 2 kg is equal to:




... Answer is D. 18 x 10¹⁶ J
m = 2 kg and c = 3 x 10⁸ m/s then E = 2 kg x (3 x 10⁸ m/s)² = 18 x 10¹⁶ J


97. The number 0.0001 in scientific notation is: :




... Answer is D. 10⁻⁴
-------------------


98. The prefixes deca, deci, and mega, respectively mean:




... Answer is A. 10¹, 10⁻¹, 10⁶
deca = 10¹, deci = 10⁻¹, mega = 10⁶


99. The density of wood is 0.5 g cm⁻³ in the CGS system of units. The corresponding value in SI units is:




... Answer is A. 500 kg m⁻³
------------------------


100. The surface tension of a liquid is 70 dyne/cm. In the MKS system its value is:




... Answer is B. 7 x 10⁻² N/m
1 dyne = `\10^{-5}`N ans 1 cm = `\10^{-2}` m



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Or 

Select from the below Links for HSSC-I (Class-11) :  Physics MCQS Preparation


1. Unit:  Measurements: Set-1 (32 MCQs), Set-2 (50 MCQs), Set-3 (50 MCQs),                                   Set-4 (50 MCQs),   Set-5 (50 MCQs),  

2. Unit:  Vectors and Equilibrium: Set-1 (34 MCQs), 

3. Unit:  Force and Motion: Set-1 (34 MCQs), 

4. Unit:  Work and Energy: Set-1 (29 MCQs), 

5. Unit:  Rotational and Circular Motion: Set-1 (31 MCQs), 

6. Unit:  Fluid Mechanics or Dynamics: Set-1 (31 MCQs), 

7. Unit:  Oscillations : Set-1 (27 MCQs), 

8. Unit:  Waves : Set-1 (27 MCQs), 

9. Unit:  Physical Optics : Set-1 (27 MCQs), 

10. Unit:  Thermodynamics: Set-1 (34 MCQs),  

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Shortcut Links For 


1. Website for School and College Level Physics   
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