1st Year Physics MCQs Punjab Board |

## 11th Class Physics MCQs Chapter 1 Punjab Board

Question 1: An engine which gives maximum efficiency is called ?

- Heat engine
- Petrol engine
- None of these
- Carnot engine

D

Question 2: Longitudinal waves do not exhibit ?

- None of these
- Diffraction
- Reflection
- Polarization

D

Question 3: The ratio of distance covered to displacement covered by a body along a semicircle is ?

- 2π
- 1
- π
- π/2

D

Question 4: Height of projectile is ?

- vi sin² 0/2g
- vi² sin 0/g
- vi²sin² 0/2g
- vi sin 0/g

C

Question 5: Length of a telescope in normal adjustment ?

- fo – fe
- fe – fo
- fe + fo
- fo/fe

C

Question 6: PVγ = Constant, is a relation for ?

- Adiabatic process
- Isothermal process
- Isobaric process
- Isochoric process

A

Question 7: For glass air boundary critical angle is ?

- 43˚
- 41˚
- 45˚
- 41.8˚

D

Question 8: Polarization of light shows that light waves are ?

- Both (a), (b)
- None of these
- Longitudinal
- Transverse

D

Question 9: Distance between a node and antinode is ?

- λ/2
- λ/4
- λ/3
- λ

B

Question 10: Equation of continuity is based on law of conservation of ?

- Charge
- Mass
- Energy
- Momentum

B

Question 11: The change in entropy of a system is given mathematical form ?

- ∆S = - ∆Q/T
- ∆S = - T/∆Q
- ∆S = - ∆Q x T
- ∆Q = - ∆S/T

A

Question 12: Ĵ . (ˆk x î) = ?

- î
- 0
- ˆk
- 1

D

Question 13: Energy stored in a compressed spring is ?

- None of these
- P.E.
- K.E.
- Elastic P.E.

D

Question 14: Scalar product of force and velocity is ?

- Velocity
- None of these
- Power
- Torque

C

Question 15: Which one of the following is not a unit of time ?

- Solar day
- Leap Year
- Parallactic Second
- Lunar month

C

Question 16: Minimum number of unequal force whose vector sum be zero is ?

- 5
- 3
- 2
- 7

B

Question 17: The product of time period and frequency is ?

- 2
- none of these
- 1
- 3

C

## 11th Class Physics MCQs Chapter 2 Punjab Board

Question 1: The drag force increases as speed of object ?

- Constant
- All of these
- Decreases
- Increases

D

Question 2: Dimensions of angular velocity is same as that of the dimensions of ?

- Time period
- Frequency
- Velocity
- Torque

C

Question 3: For a diatomic gas Cv = 5R/2, therefore for this gas γ = ?

- 7/5
- 35/4
- 5/7
- 4/35

A

Question 3: (12+23-32)-1 ?

- 4
- 2
- 30
- 32

B

Question 5: The velocity time graph is parallel to time axis, acceleration of moving body is ?

- Negative
- Positive
- Zero
- Maximum

C

Question 6: The path of projectile is ?

- Circle
- Elliptic
- Parabola
- Hyperbola

C

Question 7: The frictional effect between different layers of moving fluid is called ?

- Pressure
- Force
- Viscosity
- Density

C

Question 8: Dimensions of moment of intertia ?

- [M²L]
- [ML²]
- [ML]
- [MLT⁻¹]

B

Question 9: 1 radian= ?

- 67.3˚
- 77. 3˚
- 57. 3˚
- 50. 3˚

C

Question 10: Light from sun reaches the earth in form of ---------- ?

- Cylindrical wave front
- Spherical wave front
- All of above
- Plane wave front

B

Question 11: Absolute P.E. on the surface of earth is ?

- -GMm/R
- -GMm/r₁
- GMm/R
- -GMm/r

A

Question 12: The frequency of second’s pendulum is ?

- 2 Hz
- 4 Hz
- 0.5 Hz
- 1 Hz

C

Question 13: Time period for mass-spring system is ?

- 2π √mK
- 2π √K/m
- 2π √m/K
- 2π √1/g

C

Question 14: The component of 9î + 17Ĵ along z-axis is ?

- 9
- Zero
- 26
- 17

B

Question 15: Unit of magnifying power is ?

- Watt
- Joule
- Dioptre
- Has no unit

D

Question 16: K.E. of 1 kg body having momentum 2 N-c is equal ?

- 10 J
- 2 J
- 1 J
- 5 J

B

Question 17: Dimensions of entropy ?

- [ML⁻²T²K]
- [MLT⁻²]
- [ML²T⁻²K⁻¹]
- [ML⁻²T⁻²K⁻¹]

B

## 11th Class Physics MCQs Chapter 3 Punjab Board

Question 1: Escape velocity from surface of moon is ?

- 2.4 km/s
- 11.2 km/s
- 11 m/s
- 24 m/s

B

Question 2: A double convex lens acts as diverging lens when the object is ?

- Between F and 2F
- On 2F
- Inside focus
- Away from 2F

C

Question 3: The speed of sound in air at 0˚C is ?

- 224 m/s
- 332 m/s
- 322 m/s
- Zero

B

Question 4: The angle of projection of a projectile for which its maximum height is equal to its range is ?

- 63˚
- 66˚
- 76˚
- 77˚

C

Question 5: In scientific notation 134.7 can be written as ?

- 1.347 x 10²
- None of these
- 1.347 x 10⁻²
- 1.347 x 10³

A

Question 6: The weight of man in an elevator moving down with an acceleration of 9.8 m/s² become ?

- Double
- Zero
- Half
- Unchanged

B

Question 7: Pressure is ?

- Both (a), (b)
- Vector quantity
- Scalar quantity
- None of these

C

Question 8: Which of the following process is irreversible ?

- A chemical explosion
- None of these
- Slow compression of a gas
- Slow compression of an elastic spring

A

Question 9: Torricelli’s theorem is ?

- AV = Constant
- √2g(h₁ - h₂)
- 1/2 rV²₂
- √2gh₁

B

Question 10: Unit of spring constant is ?

- N.m³
- N/m
- Nm
- N/m²

B

Question 11: Final image formed by a compound microscope is ?

- Real and inverted
- Virtual and erect
- Virtual and inverted
- Real and erect

C

Question 12: The temperature scale which is independent of the nature of substance used in thermometer is called ?

- Centigrade scale
- Kelvin scale
- Fahrenheit scale
- Thermodynamic scale

D

Question 13: Bragg’s equation is ?

- D sin θ = nλ
- 2d sin θ = nλ
- λd sin θ = 2n
- n sin θ = dλ

B

Question 14: The force which is responsi9ble for the motion of simple pendulum is ?

- mg cos θ
- Mg
- mg sin θ
- mg tan θ

C

Question 15: The result of two vectors of magnitude 2 and 3 is 1. The angle between them is ?

- 180˚
- 0˚
- 45˚
- 90˚

A

Question 16: If vectors 2î + 4Ĵ -7ˆk and 2î + 6Ĵ + qˆk are perpendicular then value of q is ?

- 4
- 7
- 5
- 13

A

Question 17: 1 torr = ?

- 133.3 N/m³
- 133.3 Nm
- 133.3 N/m²
- 133.3 Nm⁻¹

C

## 11th Class Physics MCQs Chapter 4 Punjab Board

Question 1: The surface on which all the points have the same phase of vibration is called ?

- Wavelength
- None of these
- Wave front
- Focal length

C

Question 2: For air value of γ is ?

- 2.4
- 1.5
- 1.4
- 3.4

C

Question 3: The density of a cube is measured by measuring its mass and the length of its side. If maximum error in the measurement of mass and length are 3% and 2% respectively, then error in density is ?

- 7%
- 9%
- 5%
- 1%

B

Question 4: If resultant of two vectors each of magnitude F is also of magnitude F, the angle between them will be ?

- 90˚
- 120˚
- 60˚
- 180˚

B

Question 5: Speed of light through medium other than air is always ?

- Greater than C
- Now of these
- Equal to C
- Less than C

D

Question 6: If F = 0.08 N and x = 4 cm then K = ?

- 2
- 6
- 8
- 4

A

Question 7: If |A + B| = |A – B| then angle between A and B is ?

- 120˚
- 45˚
- 90˚
- 180˚

C

Question 8: The process for which entropy remains constant is ?

- Both (a), (b)
- Irreversible
- Reversible
- None of these

C

Question 9: A disc, hoop and a sphere start moving down from top of an inclined plan at same time. Which one will be moving faster on reaching bottom ?

- Both (a), (c)
- Sphere
- Disc
- Hoop

B

Question 10: Length of compound microscope is ?

- qe + po
- qope
- qo + pe
- fo + fe

C

Question 11: Unit of impulse is ?

- N sec.
- kg m²/s
- Nm
- N

A

Question 12: [LT⁻²] is dimensional formula for ?

- Acceleration
- Momentum
- Force
- Velocity

A

Question 13: If pipe is open at one end and closed at other end, harmonics generated are ?

- 3
- 6
- 2
- 4

A

Question 14: While driving equation of time period for simple pendulum which should be kept small ?

- Mass of bob
- Amplitude
- Length
- Number of vibrations

B

Question 15: 1 KWh = ?

- 3.6 x 10⁻⁵ J
- 3.6 x 10⁶ J
- 3.6 x 10⁵ J
- 3.6 x 10⁻⁶ J

B

Question 16: Pressure will be low where speed is ?

- Zero
- Low
- High
- None of these

C

Question 17: Heat represents: ?

- Density
- Power
- Energy in transit
- Momentum

C

## 11th Class Physics MCQs Chapter 5 Punjab Board

Question 1: A rain drop of radius r falls with terminal sped Vt. What is terminal speed of rain drop of radius 2r ?

- 2vt
- vt
- 4vt
- vt/2

C

Question 2: Radar is an application of ?

- Zeeman effect
- Photoelectric effect
- Doppler effect
- Compton effect

C

Question 3: If earth contracts so that its radius becomes half. How fast then it will rotate? As earth rotates on its axis once a day ?

- 24 h
- 18 h
- 3 h
- 6 h

D

Question 4: When damping is small, the amplitude of vibration is ?

- Large
- Small
- None of these
- Both (a), (b)

A

Question 5: Unit vector in the direction of A = 4î + 3Ĵ: ?

- 3î + 4Ĵ/5
- 4î + 3Ĵ/7
- î + 3Ĵ/5
- 4î + 3Ĵ/5

A

Question 6: At absolute zero temperature, the gases have ?

- Zero volume
- None of these
- Maximum volume
- Negative volume

A

Question 7: In Michelson’s experiment, equation used to find speed of light is ?

- 2d/c
- 16d/f
- 16 fd
- 16d/f

C

Question 8: Focal length f and radius of curvature are related as ?

- f = 2R
- f = √R
- f = R/2
- f = R

C

Question 9: Time to reach maximum height for a projectile is ?

- vi² sin 2θ/g
- 2vi sin θ/g
- vi sin² θ/2g
- vi sin θ/g

D

Question 10: 1 femto = ?

- B
- A
- D
- C

Option A= 105

Option B= 10-15

Option C= 1015

Option D= 10-5

A

Question 11: In young’s double slit experiment, fringe spacing is: ?

- λd/L
- λL/d
- dL/λ
- λd/2L

B

Question 12: The waveform of S.H.M. is ?

- Square wave
- Sine wave
- Pulse
- Sawtooth wave

B

Question 13: If a transverse wave traveling in a rare medium is incident on a denser medium, it is reflected such that it undergoes a phase change of ?

- 180˚
- 120˚
- 90˚
- 360˚

A

Question 14: The fundamental equation in fluid dynamics that relates pressure to fluid speed and height is ?

- None of these
- Equation of continuity
- Maxwell’s equation
- Bernoulli’s equation

D

Question 15: According to Pascal’s law pressure every where inside the vessel will be ?

- Maximum
- None of these
- Different
- Same

D

Question 16: Work done is maximum if angle between F and d is ?

- 90˚
- 45˚
- 180˚
- 0˚

D

Question 17: Unit of spring constant is identical with that of ?

- Surface tension
- Pressure
- Torque
- Force

A

## 11th Class Physics MCQs Chapter 6 Punjab Board

Question 1: The slope of velocity time graph gives ?

- Acceleration
- speed
- Distance
- Area

C

Question 2: Moment of Inertia is measured in ?

- kgm-2
- N.S
- kgm2
- red/sec

C

Question 3: The area between Velocity-time graph and the time axis is numerically equal to ?

- Distance covered by the object
- Average velocity of the object
- Speed of Object
- Acceleration of object

A

Question 4: Isothermal process is carried out at constant ?

- Volume
- Energy
- Temperature
- Pressure

C

Question 5: Energy Stored in wining spring ?

- K.E
- Elastic P.E.
- Electrical Energy
- Solar Energy

B

Question 6: Unit of blood pressure is ?

- Torr
- N.m-2
- Pascal
- Decibel

A

Question 7: Symbolically solid angle is represented as ?

- 0
- Cd
- sr
- rad

C

Question 8: The equation 2d sin 0 = ny denotes ?

- Bragg equation
- Young Double slit equation
- Diffraction grating equation
- Huygen Principle

A

Question 9: Reverse process of vector addition is called ?

- Obtaining a unit vector
- Subtraction of vectors
- Resolution of vectors
- Making a vector negative

C

Question 10: Human blood-pressure is measured in ?

- mm
- N-m-2
- Pascal
- cm

B

## 11th Class Physics MCQs Chapter 7 Punjab Board

Question 1: The total quantities are ?

- 3
- 7
- 9
- None

B

Question 2: At constant pressure, the graph between V and T is ?

- Hyperbola
- Parabola
- Ellipse
- Straight line

D

Question 3: If line of action of force passes through axis of rotation or origin, then its torque is ?

- Unity
- maximum
- Zero
- None of these

C

Question 4: If focal length is 5 cm then power of a lens is ?

- 20
- 15
- 5
- 10

A

Question 5: The frequency of a second's pendulum is ?

- one Hz
- 0.5 Hz
- 2.0 Hz
- 1.5 Hz

B

Question 6: The smooth or steady stream line flow is called ?

- Regular Flow
- Laminar Flow
- Simple flow
- Turbulent Flow

B

Question 7: The SI unit of work is ?

- Erg
- Joule
- Newton
- Dyne

B

Question 8: The SI unit of solid angle is ?

- Degree
- Candela
- Steradian
- Radian

C

Question 9: The resultant of tow forces 3N and 4N making an angle 90 with each other is ?

- 1 N
- 7 N
- 3.5 N
- 5 N

D

Question 10: Laws of motion are not valid is a system which is ?

- Moving with uniform velocity
- at rest isolated
- Non-inertial
- none of these

C