Friday, 1 March 2019

# Physics MCQs 10th Class Punjab Board Objective Type Questions With Answers

Solved MCQs Physics Chapter wise all Pakistan Punjab Board exams. These MCQs are very helpful for the final year exams of the Physics. In this section you will study all of the MCQs of the Physics for the Board exams tests. Physics MCQs for the NTS, PPSC and other important MCQs.

 10th Physics MCQs

## 10th Class Physics Chapter 1 Simple Harmonic Motion and Waves

Question 1: The distance between two consecutive crests or troughs is called ?
1. Frequency
2. Wavelength
3. Amplitude
4. Time period
B
Question 2: The wavelength of a wave passing through a medium is 0.1m. If wave speed is 2ms⁻¹, then the wave frequency is ?
1. 20 Hz
2. 100 Hz
3. 10 Hz
4. 5 Hz
A
Question 3: The time period of time period is equal to ?
1. T=1/2 π √k/m
2. T=1/2 π √m/k
3. T=2 π √m/k
4. T=2 π √k/m
C
Question 4: The relation between the frequency, speed and wavelength of a wave is represented by ?
1. v= f λ
2. f= v λ
3. v= 1/f λ
4. f= 1/v λ
A
Question 5: The apparatus used to study the properties of waves is known as ?
1. Stroboscope
2. Oscillator
3. Ripple Tank
4. Simple pendulum
C
Question 6: The maximum distance of a vibrating body between the mean position and extreme position is known as ?
1. Amplitude
2. Equilibrium
3. Maximum distance
4. Displacement
A
Question 7: Radio waves, television waves, heat and light waves are examples of ?
1. Mechanical Waves
2. Electromagnetic Waves
3. Stationary Waves
4. Longitudinal Waves
B
Question 8: The acceleration of a body executing SHM is directly proportional to its ?
1. Frequency
2. Wavelength
3. Time period
4. displacement
D
Question 9: Mathematically spring constant is given by the equation ?
1. k = a/Fext
2. k = m/Fext
3. k =Fext/x
4. k = x/Fext
C
Question 10: The time period of simple pendulum does not depend upon its ?
1. Mean Position
2. Amplitude
3. Length
4. Mass
D
Question 11: A body of mass 0.5 kg is attached to a spring placed on a horizontal frictionless surface. If the spring constant of this spring is 8 Nm⁻¹, then its time period will be ?
1. 1.57 s
2. 0.57 s
3. 0
4. 2.57 s
A
Question 12: The reciprocal of time period is equal to ?
1. Amplitude
2. Frequency
3. wavelength
4. Displacement
B

## 10th Class Physics Chapter 2 Sound

Question 1: The intensity of fasting audible sound is ?
1. 10⁻¹ Wm⁻²
2. 10⁻¹² Wm⁻²
3. 10⁻¹⁰ Wm⁻²
4. 1 W⁻²
B
Question 2: In stationary waves, the distance between a node and the next anti-node is equal to ?
1. 1/3 rd of wavelength
2. 1/4 th of wavelength
3. 1/2 wavelength
4. One wavelength
B
Question 3: 1 bel is equal to ?
1. 10⁻² decibel
2. 100 decibel
3. 10 decibel
4. 10⁻¹ decibel
C
Question 4: The SI unit of sound level is ?
1. Decibel
2. Watt
3. Bel
4. Wm⁻²
A
Question 5: Sound is always produced by ?
1. Moving bodies
2. Vibrating bodies
3. Circulating bodies
4. Bodies at rest
B
Question 6: If ‘f’ is the frequency of tuning fork and ‘l’ is the length of resonating air column, then we can find the velocity of sound by the equation ?
1. v=4fl
2. v=2fl
3. v= f/l
4. v=1/4fl
A
Question 7: The SI unit of intensity of sound is ?
1. Wm⁻¹
2. Wm⁻²
3. 1 dB
4. 10 dB
B
Question 8: Sound cannot travel through ?
1. Solids
2. Gases
3. Vacuum
4. Liquids
C
Question 9: If the area of the vibrating body is large, the sound produced will be ?
1. Faintest
2. Loud
3. Weak
4. High
B
Question 10: The speed of sound is ?
1. 240 ms⁻¹
2. 440 ms⁻¹
3. 540 ms⁻¹
4. 340 ms⁻¹
D
Question 11: Sound waves are:
1. Transverse waves
2. Electromagnetic Waves
3. Compressional Waves
4. Stationary Waves
C
Question 12: The average human audible frequency range is ?
1. 200 to 2000 Hz
2. 20 to 20,000 Hz
3. 200 to 20,000 Hz
4. 20 to 2000 Hz
B

## 10th Class Physics Chapter 3 Geometrical Optics

Question 1: The real dept of a swimming pool is 2 m. what is the apparent depth of the pool if the refractive index of water is 1.33 ?
1. 2.0m
2. 1.25m
3. 1.5m
4. 2.5m
C
Question 2: The refractive index of glass w.r.t air is ?
1. 1.48
2. 1.33
3. 1.4
4. 1.5
D
Question 3: If an image is three times of its object, then the magnification is ?
1. 3
2. 2
3. 4
4. 6
A
Question 4: The principle focus of a convex mirror is ?
1. Positive
2. Virtual
3. Real
4. Negative
B
Question 5: The image obtained from a concave lens is always ?
1. Virtual
2. Large
3. Small
4. Real
A
Question 6: Focal length of a concave mirror is taken as ?
1. Half
2. Double
3. Positive
4. Negative
C
Question 7: If ‘R’ is a radius of curvature of a spherical mirror, then its focal length ‘f’ is given by ?
1. f=4f
2. f=R/2
3. f=f/4
4. f=2R
B
Question 8: Rainbow is a solar spectrum produced due to the ?
1. Total internal reflection
2. Refraction
3. Reflection
4. Dispersion
D
Question 9: In case of convex mirror, the image is always ?
1. Real, erect and diminished
2. Real, zig-zag and diminished
3. Virtual and diminished
4. Virtual, erect and diminished
D
Question 10: An optical fiber works on the principle of ?
1. Interference
2. Total internal reflection
3. Diffraction
4. Refraction
B
Question 11: The focal length of a convex lens is taken as ?
1. Negative
2. Shorter
3. Larger
4. Positive
D
Question 12: If focal length of a lens is 1 m, then its power is ?
1. four dioptres
2. One dioptre
3. three dioptre
4. Two dioptres
B

## 10th Class Physics Chapter 4 Electrostatics

Question 1: The distance between two point charges is 20 cm. If the distance is reduced to 10cm, the Coulomb’s force would become ?
1. Four Times
2. One Fourth
3. Half
4. Two Time
A
Question 2: The device used to store electric charge is ?
1. Resistance
2. Ammeter
3. Electroscope
4. Capacitor
D
Question 3: If ‘W’ is the amount of work done in bringing a test charge ‘+q’ from infinity to a certain point in the field, the potential ‘V’ at that point would be given by ?
1. W = q/v
2. V = W/q
3. V = q/W
4. V = qW
B
Question 4: When a positive charge of 2 coulombs is placed at a point in an electric field, it experiences a force of 6 N. The intensity of electric field at this point is ?
1. 12 NC⁻¹
2. 3 NC⁻¹
3. 6 NC⁻¹
4. 3 NC⁺¹
B
Question 5: One electron volt is equal to ?
1. 1.6 x 10⁻¹⁹ J
2. 1.6 x 10⁹ J
3. 1.6 x 10¹⁹ J
4. 1.6 x 10⁻⁹ J
A
Question 6: Like charge ?
1. Repel each other
2. None of these
3. No effect
4. Attract each other
A
Question 7: Two capacitors of 3µF and 6µF capacitance are connected in parallel. Their equivalent capacitance will be ?
1. 12 µ F
2. 9 µ F
3. 3 µF
4. 6 µ F
B
Question 8: Electroscope is used ?
1. For detecting and testing the nature of change
2. Both of these
3. To distinguish between insulators and conductors
4. None Of These
B
Question 9: In SI system, if the medium between the two charges is space or air then in this case the value of ‘k’ will be ?
1. 9 x 10⁻⁹ Nm²C⁻²
2. 9 x 10⁻⁹ Nm²C²
3. 9 x 10⁹ Nm²C⁻²
4. 9 x 10⁻¹⁹ Nm²C²
C
Question 10: Two bodies are oppositely charged with 500µC and 100 µC. If the distance between them in air is 0.5m, then the force between them is ?
1. 900 N
2. 1800 N
3. 2400 N
4. 1200 N
B
Question 11: The IS unit of change is coulomb which is equal to the charge of ?
1. 6.25 x 10¹⁸ electrons
2. 6.25 x 10¹⁵ Protons
3. 6.25 x 10⁻¹⁵ Protons
4. 6.25 x 10⁻¹⁸electrons
A
Question 12: If the distance between two point charges ‘q₁’ and ‘q₂’ is ‘r’, then Coulomb’s law mathematically, can be written as ?
1. F = k q₁q₂/r
2. F = k 2q₁q₂/r²
3. F = k q₁q₂/r²
4. F = k (q₁q₂)²/r²
C

## 10th Class Physics Chapter 5 Current Electricity

Question 1: If two resistances of 6Ω each are connected in parallel combination, then their equivalent resistance will be ?
1. 18Ω
2. 12Ω
D
Question 2: In the series circuit the magnitude of current that follows through each resistor is ?
1. Same
2. Very large
3. Different
4. Very small
A
Question 3: If we increase the length of a wire to four times its original length, what will be its resistance now ?
1. The same
2. Eight times
3. Doubled
4. Four times
C
Question 4: If we increase the temperature of a conductor, its resistance will ?
1. Increase
2. Remain same
3. Decrease
4. None of them
A
Question 5: If 0.5 C charge passes through a certain surface in 10 s, then the current flowing through this surface will be ?
1. 100 mA
2. 10 mA
3. 50 mA
4. 5 mA
C
Question 6: A resistance which is connected with the galvanometer in order to convert it into an ammeter should have ?
1. Low resistance
2. Zero resistance
3. High resistance
4. Very high resistance
A
Question 7: The instrument with which we can detect the presence of current in a circuit is known as ?
1. Voltmeter
2. Amometer
3. Ohm meter
4. Galvanometer
D
Question 8: According to Ohm’s law the relation between V and I is ?
1. V ∞ 1/I
2. V∞ I²
3. V = I
4. V ∞ I
D
Question 9: The energy supplied in driving one coulomb of charge around a complete circuit in which the cell is connected is called ?
1. e.m.f
2. Potential difference
3. Volt
4. Resistance
A
Question 10: The SI unit of electric current is ?
2. Ampere
3. Volt
4. Ohm
B
Question 11: If three resistances of 6Ω each are connected in series combination, what will be the equivalent resistance them ?
1. 12Ω
2. 18Ω
3. 24Ω
B
Question 12: In metals, current flows only due to the flow of ?
1. Neutrons
2. Electrons
3. Free electrons
4. Protons
B

## 10th Class Physics Chapter 6 Electromagnetism

Question 1: Transformer works on the principle of ?
1. Self induction
2. Electrostatics
3. Electromagnetism
4. Mutual induction
D
Question 2: A simple A.C. generator converts ?
1. Electrical energy into mechanical energy
2. Mechanical energy into electrical
3. Mechanical energy into heat
4. Electrical energy into heat
B
Question 3: The force on a conductor is maximum, if the angle between the conductor and magnetic field is ?
1. 30⁰
2. 60⁰
3. 90⁰
4. 0⁰
C
Question 4: The magnetic field pattern of a solenoid with the field pattern of a ?
1. Long wire
2. Point magnet
3. Bar magnet
4. U-shaped magnet
C
Question 5: When current passes through a certain conductor, the filed produced around it is ?
1. Magnetic field
2. Gravitational Filed
3. Electromagnetic
4. Electric filed
A
Question 6: The number of magnetic lines of force passing through any surface is called ?
1. Magnetic fields
2. Magnetic Flux
3. Magnetic potential
4. Magnetic intensity
B
Question 7: If a coil is rotated in a magnetic field, the magnetic flux passing through is would be maximum when its position is ?
1. Parallel to the lines of force
2. Horizontal to the lines of force
3. Perpendicular to the lines of force
4. Opposite to the lines of force
C
Question 8: In d.c. motor split rings are made of ?
1. Wood
2. Carbon
3. Copper
4. Glass
C
Question 9: The lines of magnetic field would be in a form of concentric circles, if the conductor is a ?
1. Cir Circular wire
2. Straight wire
3. Solenoid
4. Elliptical wire
B
Question 10: A.C. generator works on the principle of ?
1. Change of potential difference
2. Change of flux induces zero emf in the coil
3. Change of energy
4. Change of flux induces an emf in the coil
D
Question 11: In induced current will flow through a coil when the magnet and the coil are ?
1. Far away from each other
2. At rest
3. Very close to each other
4. In relative motion
D
Question 12: When a current passes through a straight conductor, the direction of magnetic lines of force can be determined by the ?
1. Left & right hand rule
2. Right hand rule
3. Left hand rule
4. None of these
B

## 10th Class Physics Chapter 7 Basic Electronics

Question 1: The ionization produced by β- Particles in air is less than that of α-rays by ?
1. 1/10 times
2. 1/100 times
3. 1/1000 times
4. 1/10000 times
B
Question 2: If a β- Particles is emitted from an element A/Z X, then the new element would be ?
1. A+4/Z+2 Y
2. A-2/Z-2 Y
3. A/Z-2 Y
4. A/Z+1 Y
D
Question 3: The energy produced from 20kg of carbon if it is completely changed into energy is ?
1. 1.8 x 10²⁰J
2. 1.8 x 10¹⁸J
3. 1.8 x 10⁻²⁰J
4. 1.8 x 10⁻¹⁸J
B
Question 4: The famous Einstein’s mass-energy equation is ?
1. E = 1/2 mc²
2. E = √mc²
3. E = mc²
4. E = mc
C
Question 5: Alpha particles are similar to ?
1. Protons
2. Neutron nucleus
3. Neutrons
4. Helium nuclei
D
Question 6: A nucleon is heavier than an electron by approximately ?
1. 1632 times
2. 1932 times
3. 1732 times
4. 1836 times
D
Question 7: Charge on alpha particles is twice the charge of ?
1. Electrons
2. Neutrons
3. Proton
4. Helium
C
Question 8: The particle which is not affected by electric and magnetic fields is called ?
1. α- Particle
2. Electrons
3. γ- Particle
4. β- Particle
C
Question 9: Isotopes are those elements which has same atomic number but different number of ?
1. Neutrons
2. Both (a) and (b)
3. Protons
4. Electrons
A
Question 10: β- Particles are similar to fact moving ?
1. Helium nuclei
2. Electrons
3. Neutrons
4. Protons
B
Question 11: Radioactivity is such a process in which certain elements, naturally keep on radiating with charge number greater than ?
1. 84
2. 82
3. 86
4. 88
B
Question 12: By nature Gamma-rays are ?
A

## 10th Class Physics Chapter 8 Information and Communication Technology

Question 1: In a n-type semi-conductor, current passes mostly due to ?
1. Holes
2. None of them
3. Both of them
4. Free electrons
D
Question 2: In a p-n junction, the depletion region does not contain ?
1. Free electrons
2. Holes
3. Both (A) and (C)
4. Protons
C
Question 3: Near zero Kelvin temperature, a pure crystal of silicon or germanium behaves as ?
1. Metal
2. Conductor
3. An insulator
4. Liquid
C
Question 4: Pick out the trivalent impurity atom ?
1. Arsenic (As)
2. Phosphorous (P)
3. Gallium (Ga)
4. Bismuth (Bi)
C
Question 5: A diode can be used as a ?
1. Amplifier
2. Transistor
3. Rectifier
4. All of these
C
Question 6: In case of silicon the maximum value of the potential barrier is ?
1. 0.3 volt
2. 0.9 volt
3. 0.7 volt
4. 0.5 volt
C
Question 7: A and B are the two inputs of a NOR gate. Its output would be 1 when ?
1. A = 0, B = 0
2. A = 0, B = 1
3. A = 1, B = 1
4. A = 1, B = 0
A
Question 8: In forward biasing, the resistance of the diode is of ?
1. Few giga ohms
2. Few ohms
3. Few mega ohms
4. Few kilo ohms
C
Question 9: The two inputs of a OR gate are A and B. Its output would be 0 when ?
1. A = 1, B = 1
2. A = 1, B = 0
3. A = 0, B = 1
4. A = 0, B = 0
D
Question 10: The two inputs of a NAND gate are A and B. Its output would be 0 when ?
1. A = 0, B = 1
2. A = 1, B = 0
3. A = 1, B = 1
4. A = 0, B = 0
D
Question 11: Pick out the pentavalent impurity atom ?
1. Indium (In)
2. Arsenic (As)
3. Aluminum (Al)
4. Boron (B)
B
Question 12: In p-type semi-conductor, nearly the whole of current flows due to ?
1. Free electrons
2. Protons
3. Both of them
4. Holes
D

## 10th Class Physics Chapter 9 Atomic and Nuclear Physics

Question 1: Floppy disk can store a data of about ?
1. 144 MB
2. 50 Kb
3. 650 MB
4. 1.44 MB
D
Question 2: The vibrations produced by conversation in the telephone hand set are converted into electric signals by ?
1. Electromagnet
2. Microphone
3. Wires
4. Speaker
B
Question 3: All the work done on the computer in is the light of instructions which are called ?
1. Language
2. CPU
3. Input device
4. Program
D
Question 4: In the remote control device the waves used are ?
1. Sound waves
2. Infra-red waves
3. Micro waves
4. Light waves
B
Question 5: The brain of computer is called ?
1. Printer
2. Monitor
3. CPU
4. Key board
C
Question 6: The devices like CDs and laser discs work on the principle of ?
1. Electromagnetism
2. Laser technology
3. Magnetism
4. Electricity
B
Question 7: It is a flexible plastic disk ?
1. CD room
2. Floppy
3. Hard Disk
4. CD
B
Question 8: In mobile phones, the technology used is ?
2. Television
3. Telegraph
4. E-mail
A
Question 9: Working principle of telephone is similar to ?
1. Telegraph
2. Computer
3. Typewriter
4. E-mail
B
Question 10: The CPU comprises of ?
1. Memory unit
2. Input and Output units
3. Both Control and Memory unit
4. Control unit
C
Question 11: The devices like audio-video tape and floppy discs work on the principle of ?
1. Magnetism
2. Induction
3. Electricity
4. Electromagnetism
D
Question 12: The storage capacity of CD’s is of about ?
1. 650 KB
2. 1650 KB
3. 650 MB
4. 1650 KB
C

## 10th Class Punjab Board

• Chemistry MCQs 10th Class Punjab Board Chapter Wise MCQs
• Computer MCQs 10th Class Solved Notes
• Biology MCQs 10th Class Notes Chapter Wise
• English MCQs 10th Class Solved Punjab Board Exams
• Mathematics MCQs 10th Class Punjab Board Exams
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