Mehran University Physics Past Papers 2025: 50 Important MCQs for Exam Prep
Mehran University Physics Past Papers 2025
MCQ 1
What is the unit of resistance?
A) Ohm (Ω)
B) Pascal (Pa)
C) Watt (W)
D) Joule (J)
Right option: A) Ohm (Ω)
MCQ 2
What is the ultimate source of energy?
A) Earth
B) Sun
C) Moon
D) Stars
Right option: B) Sun
MCQ 3
What is the product of power and time?
A) Power
B) Work
C) Force
D) Displacement
Right option: B) Work
MCQ 4
What is the unit of viscosity?
A) Pascal (Pa)
B) Pascal-second (Pa·s)
C) Newton (N)
D) Joule (J)
Right option: B) Pascal-second (Pa·s)
MCQ 5
What is the formula for velocity?
A) Displacement × Time
B) Displacement / Time
C) Force / Area
D) Work / Time
Right option: B) Displacement / Time
MCQ 6
What is the unit of acceleration?
A) m/s
B) m/s²
C) m²/s
D) m²/s²
Right option: B) m/s²
MCQ 7
What is the potential energy formula?
A) PE = ½ mv²
B) PE = mgh
C) PE = F · d
D) PE = W / t
Right option: B) PE = mgh
MCQ 8
What is the kinetic energy formula?
A) KE = mgh
B) KE = ½ mv²
C) KE = F · d
D) KE = W / t
Right option: B) KE = ½ mv²
MCQ 9
What is the equilibrium condition?
A) ∑F = 1
B) ∑F = 0
C) ∑F = -1
D) ∑F = ∞
Right option: B) ∑F = 0
MCQ 10
What is the unit of power?
A) Joule (J)
B) Watt (W)
C) Pascal (Pa)
D) Newton (N)
Right option: B) Watt (W)
MCQ 11
What is the first law of thermodynamics?
A) ∆Q = ∆U – W
B) ∆Q = ∆U + W
C) P₁V₁ = P₂V₂
D) V₁/T₁ = V₂/T₂
Right option: B) ∆Q = ∆U + W
MCQ 12
What is an isothermal process?
A) Constant pressure
B) Constant volume
C) Constant temperature
D) No heat transfer
Right option: C) Constant temperature
MCQ 13
What is the unit of work?
A) Joule (J)
B) Watt (W)
C) Pascal (Pa)
D) Newton (N)
Right option: A) Joule (J)
MCQ 14
What is the dimension of velocity?
A) [LT⁻²]B) [ML²T⁻³]C) [LT⁻¹]D) [MT⁻²]
Right option: C) [LT⁻¹]
MCQ 15
What is the unit of sound intensity level?
A) Decibel (dB)
B) Pascal (Pa)
C) Watt (W)
D) Joule (J)
Right option: A) Decibel (dB)
MCQ 16
What is the value of gravitational acceleration on Earth?
A) 9.8 m/s
B) 9.8 m/s²
C) 10 m/s²
D) 8.9 m/s²
Right option: B) 9.8 m/s²
MCQ 17
What is the unit of inductance?
A) Ohm (Ω)
B) Henry (H)
C) Farad (F)
D) Watt (W)
Right option: B) Henry (H)
MCQ 18
What is Avogadro’s Law?
A) Equal volumes of gases at the same temperature and pressure contain the same number of molecules.
B) Volume is inversely proportional to pressure at constant temperature.
C) Volume is directly proportional to temperature at constant pressure.
D) Energy is quantized.
Right option: A) Equal volumes of gases at the same temperature and pressure contain the same number of molecules.
MCQ 19
What is a vector quantity?
A) Speed
B) Force
C) Temperature
D) Time
Right option: B) Force
MCQ 20
What is the unit of length?
A) Meter (m)
B) Kilometer (km)
C) Centimeter (cm)
D) Millimeter (mm)
MCQ 21
What is the formula for force?
A) F = m / a
B) F = m × a
C) F = E / t
D) F = W / d
Right option: B) F = m × a
MCQ 22
What is the unit of torque?
A) Nm
B) J
C) W
D) Pa
Right option: A) Nm
MCQ 23
What is Boyle’s Law?
A) Volume is directly proportional to temperature at constant pressure.
B) Volume is inversely proportional to pressure at constant temperature.
C) Pressure is directly proportional to volume at constant temperature.
D) Pressure is inversely proportional to volume at constant temperature.
Right option: B) Volume is inversely proportional to pressure at constant temperature.
MCQ 24
What is the dimension of acceleration?
A) [LT⁻¹]B) [LT⁻²]C) [MLT⁻¹]D) [MT⁻²]
Right option: B) [LT⁻²]
MCQ 25
What is the S.I. unit of energy?
A) Joule (J)
B) Watt (W)
C) Pascal (Pa)
D) Newton (N)
Right option: A) Joule (J)
MCQ 26
What is an adiabatic process?
A) Constant temperature
B) Constant pressure
C) Constant volume
D) No heat transfer
Right option: D) No heat transfer
MCQ 27
What is the formula for power?
A) P = W × t
B) P = W / t
C) P = F × d
D) P = E / t
Right option: B) P = W / t
MCQ 28
What is the unit of electric intensity?
A) N/C
B) V/m
C) J/C
D) A/m
Right option: B) V/m
MCQ 29
What is Planck’s Quantum Theory?
A) Energy is continuous.
B) Energy is quantized.
C) Momentum is quantized.
D) Position is quantized.
Right option: B) Energy is quantized.
MCQ 30
What is the size of the Moon compared to Earth?
A) 1/2 the size of Earth
B) 1/4 the size of Earth
C) 1/8 the size of Earth
D) 1/16 the size of Earth
Right option: B) 1/4 the size of Earth
MCQ 31
What is an isobaric process?
A) Constant temperature
B) Constant pressure
C) Constant volume
D) No heat transfer
Right option: B) Constant pressure
MCQ 32
What is the unit of dynamic viscosity?
A) Poise
B) Pascal (Pa)
C) Newton (N)
D) Joule (J)
Right option: A) Poise
MCQ 33
What is Charles’s Law?
A) Volume is inversely proportional to pressure at constant temperature.
B) Volume is directly proportional to temperature at constant pressure.
C) Pressure is directly proportional to volume at constant temperature.
D) Pressure is inversely proportional to volume at constant temperature.
Right option: B) Volume is directly proportional to temperature at constant pressure.
MCQ 34
What is the formula for work done?
A) W = F × d
B) W = F · d
C) W = E / t
D) W = P × t
Right option: B) W = F · d
MCQ 35
What is the dimension of power?
A) [ML²T⁻³]B) [LT⁻¹]C) [LT⁻²]D) [MT⁻²]
Right option: A) [ML²T⁻³]
MCQ 36
What is a scalar quantity?
A) Force
B) Velocity
C) Speed
D) Acceleration
Right option: C) Speed
MCQ 37
What is the value of gravitational acceleration at the Earth’s center?
A) 9.8 m/s²
B) Zero
C) 10 m/s²
D) Infinity
Right option: B) Zero
MCQ 38
What is the unit of frequency?
A) Hertz (Hz)
B) Joule (J)
C) Watt (W)
D) Pascal (Pa)
Right option: A) Hertz (Hz)
MCQ 39
What is an isochoric process?
A) Constant temperature
B) Constant pressure
C) Constant volume
D) No heat transfer
Right option: C) Constant volume
MCQ 40
What is the formula for kinetic energy?
A) K.E =1/2 mv
B) K.E= 1/2 mv^2
C)K.E =mv^2
MCQ 41
What is the ultimate source of energy for Earth?
A) Moon
B) Sun
C) Stars
D) Earth
Right option: B) Sun
MCQ 42
What is the formula for kinetic energy?
A) KE = mgh
B) KE = ½ mv²
C) KE = F · d
D) KE = P × t
Right option: B) KE = ½ mv²
MCQ 43
What is the unit of viscosity?
A) Pascal (Pa)
B) Pascal-second (Pa·s)
C) Newton (N)
D) Joule (J)
Right option: B) Pascal-second (Pa·s)
MCQ 44
What is the dimension of acceleration?
A) [LT⁻¹]B) [LT⁻²]C) [MLT⁻¹]D) [MT⁻²]
Right option: B) [LT⁻²]
MCQ 45
What is the S.I. unit of energy?
A) Joule (J)
B) Watt (W)
C) Pascal (Pa)
D) Newton (N)
Right option: A) Joule (J)
MCQ 46
What is an adiabatic process?
A) Constant temperature
B) Constant pressure
C) Constant volume
D) No heat transfer
Right option: D) No heat transfer
MCQ 47
What is the unit of electric intensity?
A) N/C
B) V/m
C) J/C
D) A/m
Right option: B) V/m
MCQ 48
What is Planck’s Quantum Theory?
A) Energy is continuous
B) Energy is quantized
C) Momentum is quantized
D) Position is quantized
Right option: B) Energy is quantized
MCQ 49
What is the size of the Moon compared to Earth?
A) 1/2 the size of Earth
B) 1/4 the size of Earth
C) 1/8 the size of Earth
D) 1/16 the size of Earth
Right option: B) 1/4 the size of Earth
MCQ 50
What is the value of acceleration due to gravity on Earth?
A) 9.8 m/s
B) 9.8 m/s²
C) 10 m/s²
D) 8.9 m/s²
Right option: B 9.8m/s^2
