# Best Class 11 Physics MCQs

## Physics MCQs 11 class Let Get Started

1 Muslim scientist made important discoveries in the period.

2 The Muslim scientist Al-khawarzami is famous for his work.
A. Physics
B. Algebra
C. Chemistry
D. Medicine

3 Fundamental ideas of modern celestial mechanics were established.
A. Kepler and Galileo
B. Newton
C. Robert Hooke
D. Tycho and helley

4 The decimal system was invented by
A. Indians
B. Greeks
C. Chinese
D. Egyptians

5 Which of the physical quantities does not have the same units?
A. Impulse and momentum
B. Pressure and strain
C. Planks constant and angular momentum
D. Bulk modulus and compressibility

6 The SI unit of force is:
A. Newton
B. Dyne
C. Slug
D. Foot-pound

7 The SI unit of energy is:
A. Joule
B. Calories
C. Slug
D. Electron volt

8 In the international system of units, the unit of mass is:
A. Gram
B. Kilogram
C. Milligram
D. Pound

9 The SI unit of power is:
A. Horsepower
B. Joule
C. Calorie
D. None of these

10 The number of fundamental units of measurement in science is:
A. Four
B. Five
C. Three
D. Seven

11 In the SI unit system, there are _ basic units.
A. Three
B. Five
C. Seven
D. Nine

12 The dimensions of velocity are:
A. [L][T]
B. [L][T-¹]
C. [L][T²]
D. [L²][T¹]

13 The dimensions of work may be:
A. [M][L]²[T]-²
B. [M][L³][T]
C. [M][L][T]-¹
D. [M][L]-¹[T]-¹

14 The maximum possible error in the reading for a meter rod (with a least count of 1 mm) is:
A. +-0.1 mm
B. 0.5 cm
C. 0.05 cm
D. 1 mm

15 The branch of science which deals with the properties of matter, energy, and their relationship is called __.
A. Physics
B. Chemistry
C. Mechanics
D. Magnetism

16 The branch of science, that deals with the forces acting on bodies in motion, is called __.
A. Chemical physics
B. Mechanics
C. Magnetism
D. Medical physics

17 __ deals with the structure of atoms and properties of atoms.
A. Atomic physics
B. Nuclei physics
C. Mechanics
D. None of these

18 The Islamic era (600-500 AD) is also known as _.
A. Historical era
B. Muslim period
C. British era
D. Greek period

19 Archimedes is also known as the founder of _ physics.
A. Optical
B. Mathematical
C. Bio-chemical
D. Modern

20 Kepler and _ established the fundamental ideas of celestial mechanics.
A. Newton
C. Galileo
D. Thales

21 “Candela” is the unit name of quantity _.
A. Time
B. Intensity
C. Mole
D. Meter

22 The unit name of temperature is _.
A. Degree Kelvin
B. Candela
C. Mole
D. Kilogram

23 “Ampere” is the unit of __.
A. Intensity
B. Electric current
C. Temperature
D. Candela

24 The supplementary units are known as _.
A. Derived units
B. Small units.
C. Positive units
D. None of these

25 The length is measured in __.
A. Kilometers
B. Seconds
C. Gram
D. Kilogram

26 We can write one kilo = _.
A. 10⁴
B. 10⁵
C. 10³
D. 10⁶

27 We can write one mega =__.
A. 10-⁹
B. 10¹⁴
C. 10¹³
D. 10⁶

28 The round figure of 46.55 is:
A. 46.6
B. 465.5
C. 455.6
D. None of these

29 Newton is the unit of __.
A. Energy
B. Electricity
C. Force
D. None of these

30 The branch of physics which deals with the properties, and interaction of nuclear particles (protons and neutrons) is called:
A. Molecular physics
B. Plasma physics
C. Nuclear physics
D. Solid state physics

31 The physics of the Islamic era ranges from _
A. 300 BC to 600 AD

32 The theory of relativity was introduced (in 1905) by
A. Planck
B. Einstein
C. Maxwell
D. Rutherford

33 The fundamental physics quantities which form the basis for the MKS system are.
A. Force, weight, and time
B. Mass, length, and time
C. Mass, length, and force
D. Mass, energy and time

34 fundamental units in the MKS system are
A. Gram, dyne, and second
B. Kilogram, centimeter, and second
C. Kilogram, Newtown, and second
D. Kilogram, meter, and second

35 the units which are based on one or more fundamental units are called
A. Fundamental units
B. Derived units
C. Basic units
D. Non of the above

36 Which of the following is not a derived unit
A. Newton
B. Meter/sec
C. Kilogram/meter³
D. Second

37 Which of the following is not a fundamental unit in SI units
A. Kilogram
B. Ampere
C. m³
D. Kelvin

38 light-year is the unit of
A. Time
B. Distance
C. Light
D. Velocity

39 Which of the following are the dimensions of force
A. LT-¹
B. LT-²
C. M¹LT-²
D. Non of these

40 The dimensions of weight are
A. MLT-¹
B. MLT-²
C. LT-²
D. ML²T

41 the SI unit of angular displacement is
A. Meter
B. Foot
D. Centimeter

42 the dimensions of frequency are
A. LT
B. LT-¹
C. MT-¹
D. T-¹

43 significant figures in 0.0001 is/are
A. One
B. Two
C. Three
D. Four

44 candela is the unit of
A. Electric flux
B. Magnetic induction
C. Torque
D. Luminous intensity of light

45 the unit of absolute temperature is
A. Fahrenheit
C. Kelvin
D. Non of these

46

47 The branch of physics which deals with the motion of the particles and bodies under the action of a given force is called
A. Solid state physics
B. Quantum physics
C. Mechanics
D. Nuclear physics

48 the branch of physics which deals with the structure and properties of the atoms as determined by the electron outside the nucleus
A. Nuclear physics
B. Atomic physics
C. Particle physics
D. Biophysics

49 The branch of physics which deals with the structure, properties, and various phenomena regarding nuclei is _____
A. Atomic physics
B. Astrophysics
C. Nuclear physics
D. Plasma physics

50 Muslim scientist who wrote book on physics, mathematics, astronomy engineering was _______
A. Abu-Ali-Hassan Ibn-al-Haitham
B. Al-Beruni
C. Yaqub kindi

A. Marconi
B. Edison
C. Rutherford
D. Davison

52 in the C.G.S system the unit of length is
A. Foot
B. Meter
C. Centimeter
D. Inch

53 in the MKS system the unit of current is
A. Ampere
B. Volt
C. Coulomb
D. Ohm

54 The new era of modern physics began near the end of
A. 16th century
B. 17th century
C. 18th century
D. 19th century

55 The theory of relativity was produced in 1905 by
A. Einstein
B. Maxwell
C. Young
D. Kelvin

56 Which of the following is not a fundamental quantity?
A. Length
B. Temperature
C. Electric charge
D. Ampere

57 the unit of torque in SI units is
A. Meter
B. Newton
C. Kilogram
D. Newton. meter

58 In the international system of the units called SI units the unit of mass is
A. Pound
B. Gram
C. Kilogram
D. Quintal

59 in the SI system the unit of length is
A. Millimetre
B. Centimeter
C. Meter
D. Kilometer

60 in the SI system the unit of the time is
A. Second
B. Minute
C. Hour
D. Day

61 In the SI system the unit of temperature is
A. Kelvin
C. Degree Fahrenheit
D. Degree Celsius

62 In the SI system the unit of energy is
A. Calorie
B. Joule
C. Erg
D. Dyne

63 The unit of force in the MKS system is
A. Newton
B. Poundal
C. Dyne
D. Watt

64 the unit of work in the MKS system is
A. Erg
B. Dyne
C. Watt
D. Joule

65 the unit of power in the MKS system is
A. Dyne
B. Erg
C. Watt
D. Joule

66 joule is the unit of
A. Force
B. Work
C. Power
D. Velocity

67 which one is a unit of time
A. Micro
B. Half-year
C. Angstrom
D. Light year

68 absolute units of work in the C.G.S system is
A. Foot pound
B. Erg
C. Joule
D. Dyne

69 the unit of velocity in the MKS system can be
A. Centimeter/sec
B. Centimeter/sec²
C. Meter/sec
D. Meter/sec²

70 meters per second is the unit of
A. Acceleration
B. Velocity
C. Surface tension
D. Momentum

71 Which of the following is a fundamental quantity
A. Volume
B. Velocity
C. Time
D. Force

72 Which of the following is a derived quantity
A. Mass
B. Length
C. Time
D. Velocity

73 the unit of power is
A. Kilowatt-hour
B. Joule
C. Dyne
D. Kilowatt

74 the dimensional formula of angular velocity is
A. M⁰L⁰T-¹
B. MLT-¹
C. M⁰L⁰T¹
D. ML⁰T-²

75 Dimensions of power is
A. M¹L²T-³
B. M²L¹T-²
C. M¹L²T-¹
D. M¹L¹T-²

76 Dimensions of the couple is
A. ML²T-²
B. MLT-²
C. ML-¹T-³
D. ML-²T-²

77 in the MKS system the unit of pressure is
A. Dyne/sm³
B. Atmosphere
C. Pascal
D. Cm of Hg

78 orange light emitted from krypton-86 atoms was used to define
A. Kilogram
B. Meter
C. Centimeter
D. Second

79 the dimensions of [½ at²] are that of
A. Acceleration
B. Velocity
C. Length
D. Time

80 the branch of physics which deals with the motion of bodies under the action of force is called
A. Mechanics
B. Statistical mechanics
C. Thermodynamics
D. Electrostatic

81 The branch of science which deals with properties of matter and energy is called
A. Chemistry
B. Biology
C. Geography
D. Physics

82 Physics is a quantitative science based primarily on
A. Fundamental quantities
B. Definition
C. Experiment and measurement
D. Description of facts

83 ML²T³ represents the dimensions of:
A. Power
B. Work
C. Strain
D. Young’s modulus

84 the Muslim scientist who wrote the book on astronomy, algebra, and arithmetic was
A. Ibn-al-Haitham
B. Al-Beruni
C. Al-khawarizmi
D. Jabir bin Hayyan

85 the first book of physics was written by
A. Kelvin
B. Aristotle
D. Newton

86 kilogram is the unit of
A. Mass
B. Weight
C. Volume
D. Density

87 work is measured in joules while energy is expressed in
A. Watt
B. J.s
C. J/s
D. J

88 an example of fundamental quantity is
A. Area
B. Volume
C. Length
D. Velocity

89 Ibn-al-Haitham developed
A. Mechanics
B. Acoustics
C. Relativity
D. Optics

90 Which one of the following is a fundamental quantity?
A. Area
B. Candela
C. Acceleration
D. Velocity

91 The special theory of relativity was published in 1905 by
A. Lorentz
B. Schrödinger
C. Einstein
D. Max Plank

92 Which one of the following is not a fundamental unit?
A. Meter²
B. Meter
C. Kelvin
D. Ampere

93 the SI system of units comprises
A. Three basic units
B. Five basic units
C. Six basic units
D. Seven basic units

94 ML-¹T⁰ is the dimensional representation of
A. Weight density
B. Linear mass density
C. Volume mass density
D. Surface density

95 which of the following quantities have the same dimensions:
1) power 2) energy 3) torque

A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 1, 2 and 3

96 pinhole camera was invented by
A. Al-Beruni
B. Yaqoob Al-kindic
C. Ibn-al-Haitham
D. Al-khawarizmi

97 Physics is one of the branches of
A. Life sciences
B. Physical sciences
C. Biological sciences
D. Social sciences

98 the famous mathematician and founder of algebra was
A. Al kindi
B. Al-khawarizmi
C. Al Bruni
D. Naseruddin This

99 zero is significant only if it
A. Lie to the left of the significant digit
B. Is between two digits
C. Is to the right of a significant digit
D. Is before the decimal point

100 A second is defined as the duration of vibration of
A. Carbon atom
B. Cesium atom
D. Nitrogen atom

101 Physics is a quantitative science based primarily on
A. Definition
B. Fundamental quantities
C. Experiment and measurement
D. A collection of skills

102 the most basic branch of “mechanics” of physics deals with the
A. Gravitational, electromagnetic, and nuclear fields
B. Acoustics
C. Motion of particles under forces
D. Optics

103 the Nuclear physics is concerned with the study of the properties of _____
A. Atoms
B. Molecules
C. Electrons
D. Matter

104 it is concerned with the application of modern physics to the astronomical phenomena
A. Astrophysics
B. Plasma physics
C. Biophysics
D. Electromagnetism

105 it is one the oldest and most highly organized of all present sciences
A. Physics
B. Chemistry
B. Biology
D. Astronomy

106 The progress of Muslims in the field of science is appreciable in the
A. 3000 BC to 600 AD

107 which of the following periods is called the period of classical physics
A. 3000 BC to 600 AD

108 Historical records show that the ancient Babylonians and Egyptians as early as 3000 BC were familiar with some of the fundamental principles of
A. Mathematics
B. Physics
C. Chemistry
D. Biology

109 the Muslim scientist who wrote a number of books on Algebra, astronomy, and arithmetic was
B. Ibn-al-Haitham
C. Jabir bin Hayyan
D. Al-khawarizmi

110 from approximately 700 BC to 150 AD very definite advances in physics were made by the
A. Arabs
B. Egyptian
C. Greeks
D. Romans

111 Who established the fundamental ideas of modern celestial mechanics based on observations?
A. Kepler
B. Galileo
C. Gilbert
D. Both a and b

112 Pythagoras added a lot in
A. Mathematics
B. Physics
C. Botany
D. Trigonometry

113 who enriched the heritage of science with number and decimal system?
A. Indians
B. Chinese
C. Arabs
D. Egyptians

114 Who added precious knowledge of astronomy to science?
A. Euclid
B. Potolmey
C. Thales
D. Archimedes

115 Who improved upon the calculations of the orbits of the moon and certain planets?
A  Al-Beruni
B. Abu Abdullah Muhammad Ibn jabir Al-battani
C. Al-khawarizmi
D. Jabir bin hayyan

116 Omar Khayyam was expert in
A. Physics
B. Chemistry
C. Mathematics
D. Non of these

117 if length = 0.233m and width 0.178m, the most accurate areas expressed in terms of significant figures is
A. 0.0391m²
B. 0.041563m²
C. 0.041474m²
D. 0.041m²

118 Physics can be defined as the study of
A. Chemical properties of matter
B. Physical properties of matter
C. Relation between matter and energy
D. Both b and c

119 prior to 1900 AD physics comprised of
A. Mechanics, sound, light, Heat, magnetism, and electricity
B. Sound, light, nuclear physics, heat, plasma physics, and mechanics
C. Astrophysics, light, heat, magnetism, electricity and sound
D. All of these

120 Physics can be defined as a branch of science based on
A. Observation and analysis of facts
B. Experimental observation and quantitative measurement
C. Mathematical calculation and interpretation
D. Replication and verification of known facts

121 The branch of physics that deals with the study of production propagation and properties of sound waves is called
A. Magnetic
B. Optics
C. Statics
D. Acoustics

122 if 0.61 is added to 167 with due regard to significant figures, then we get:
A. 168
B. 167
C. 167.61
C. 167.6

123 high energy physics deals with the
A. Study of electron behavior
B. Study of electron charge
C. Study of mechanics of energetic bodies
D. Study of properties and behavior

124 which one of the following Muslim scientists has made a significant contribution to the study of alchemy
A. Jabir bin Hayyan
C. Ibn-al-Haitham
D. Ibn-e-sina

125 The book “Kitab-ul-qanoon-ul-masoodi” was written by
A. Ibn-e-sina
B. Al-Razi
C. Abu-Rehan Al-Beruni
D. Ibn-al-Haitham

126 the first book on analytical “Hisab-ul-jabrwal-Moqabi” was written by
A. Al-khawarizmi
B. Al-Beruni
C. Al-Razi
D. Ibn-e-sina

127 “Kitab-ul-Manazir” the famous book on optics written by
A. Ibn-e-sina
B. Al-khawarizmi
C. Jabir-bin-Hayyan
D. Ibn-al-Haitham

128 in the international system of units, the unit of length, mass, time, electric current, temperature, intensity of light, and quantity of light and quantity are called
A. Derived
B. Basic
C. Fundamental
D. Only b and c

129 the number of significant figures in 0.098000 is:
A. 4
B. 2
C. 3
D. 6

130 1 degree is equal to _____ radians:
A. 0.0245
B. 0.0561
C. 3.1423
D. 0.0174

131 the famous mathematician and the founder of algebra was
A. Al-kindi
B. Al-khawarizmi
C. Al-Beruni
D. Naseruddin Tusi

132 10-⁹ second are equivalent to:
A. Deci second
B. Nanosecond
C. Milli second
D. Microsecond

133 The standard of time in the SI system is the clock of:
A. Uranium
B. Rubidium
C. Cesium

134 one Angstrom equals
A. 10-⁸ cm
B. 10⁸m
C. 10-⁶m
D. 10⁸mm

135 10 Giga Hertz is equivalent to
A. 10¹⁰ Hz
B. 10⁹ Hz
C. 10⁷ Hz
D. 10-¹⁰ Hz

136 Which of the following is the unit of electrical energy?
A.  Kg m/s²
B. Dyne
C. Kw-hr
D. Joules/sec

137 one Newton is equal to:
A. 10² Dynes
B. 10³ dynes
C. 10⁴ dynes
D. 10⁵ dynes

138 the unit of dimensions of which of the following pairs of physical quantities are identical?
A. Impulse and momentum
B. Stress and strain
C. Pressure and density
D. Gravitational potential and energy

139 the dimensions of impulse are the same as that of
A. Energy
B. Work
C. Power
D. Momentum

140 0.0084 has _____ significant figures
A. 2
B. 4
C. 5
D. 1

141 The ______ sciences deals with the properties and behavior of non-living things:
A. Natural
B. Social
C. Physical
D. Biological

142 The people of _______ were the pioneers of the decimal system:
A. China
B. Indus valley
C. Euphrates
D. Egypt

143 Physics is the quantitative science based primarily on:
A. Definition
B. Experiment and measurement
C. Hypothesis
D. A collection of skills

144 The branch of science, which deals with the interaction of matter and energy, is called
A. Chemistry
B. Mathematics
C. Statistics
D. Physics

145 Some concepts of static electricity were introduced by:
A. Greeks
B. Chinese
C. Thales
D. Einstein

146 The theory which modified Newton’s laws of motion for describing the bodies moving at a speed comparable to the speed of light is:
A. Electromagnetic theory
C. Theory of relativity
D. Collision theory

147 Astrophysics deals with:
A. Particles in space
B. Elementary particles
C. Neutrons protons
D. Electrons

148 Physics is the science based on:
A. Interaction between matter and energy
B. Energy of the material
C. Mass of the material
D. Neither energy nor matter

149 the branch of sciences that deals with the properties of matter and energy along with the interaction between them is known as:
A. Geography
B. Geology
C. Biology
D. Physics

150 one microsecond is:
A. 10-⁶ sec
B. 10-⁹ sec
C. 10⁶ sec
D. 10-³ sec

151 65 mm is equivalent to approximately:
A. 1.5 inches
B. 2.6 inches
C. 5.5 inches
D. 10.5 inches

152 of the following the largest quantity is:
A. 0.47 cm
B. 47×10-⁴ cm
C. 4.7×10-² cm
D. 0.0000047×10⁴ cm

153 the mm is the unit of:
A. Acceleration
B. Distance
C. Velocity
D. Force

154 0.0046 can be written in scientific notation as:
A. 4.6 X 10-³
B. 4.6 X 10-² cm
C. 460 X 10
D. 46 X 10-²

155 a kilogram is a unit of:
A. Weight
B. Mass
C. Volume
D. Density

156 in the following, the smallest quantity is:
A. 6.653 km
B. 0.635 km
C. 6.35 X 10⁴ m
D. 0.635 X 10⁸ mm

157 one nanometer is equal to:
A. 10-⁸ m
B. 10-¹⁰ m
C. 10-⁹ m
D. 10-¹² m

158 1 X 10⁵ is written in an ordinary form as:
A. 1000
B. 1.00000
C. 100000
D. 0.10000

159 6 X 10-¹²/2 X 10-⁶ will be equal to:
A. 3 X 10⁶
B. 3 X 10¹⁸
C. 3 X 10¹²
D. 3 X 10-⁶

160 density of air is 1.2 kg/m³. It can be expressed in gm/cm³ by:
A. 1.2 X 10⁶
B. 1.2 X 10³
C. 1.2 X 10-⁶
D. 12 X 10-⁴

161 one femtosecond is equal to:
A. 10¹⁵ sec
B. 10-¹² sec
C. 10¹² sec
D. 10-¹⁵ sec

162 the pressure of 10⁶ dyne cm is equivalent to ______ in SI :
A. 10⁵ Nm-²
B. 10⁴ Nm-²
C. 10⁶ Nm-²
D. 10⁷ Nm-²

163 The present international standard of time is:
A. 1/84,400 of means solar day
B. 9192631770 vibrations of Cesium atom
C. 1/60th of minute
D. 1/3156 X 10⁷ of a year

164 Which of the following is not a fundamental quantity?
A. Length
B. Temperature
C. Electric charge
D. Current

Physics MCQs Class 9th Chapter 1