Physics Top 100 Repeated MCQs
MDCAT · NUMS · FSc · Entry Test — most asked Physics questions with answers
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These Physics MCQs are picked from high-yield FSc chapters and mix sets — the kind of questions that appear again and again in MDCAT, NUMS, and board exams. Use page navigation below to practice all 100 MCQs, then try the Physics mock test.
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#25 Two systems are in thermal equilibrium when
A) they have equal masses
B) no net heat flows between them
C) pressures are equal
D) volumes are equal
#26 The charge on an electron is
A) $1.6\times10^{-19} C$
B) $1.6\times10^{-20} C$
C) $1.6\times10^{-21} C$
D) $1.6\times10^{-22} C$
#27 The current density J is related to current I by
A) $I=J\cdot A$
B) $I=J/A$
C) $I=JA$
D) $I=J+A$
#28 The magnetic field due to a straight current-carrying conductor is
A) Directly proportional to the current
B) Inversely proportional to the distance
C) Both A and B
D) Neither A nor B
#29 The least count is called:
A) Fractional uncertainty
B) Absolute uncertainty
C) %age uncertainty
D) None
#30 Which of the following pair has the same dimensions?
A) Force, Torque
B) Linear Momentum, Angular Momentum
C) Acceleration, Gravitational Field Strength
D) None
#31 Which one is the vector out of following?
A) Current
B) Electrostatic Potential
C) Charge
D) Moment of force
#32 The ratio of distance covered to displacement covered by a body along a semiricle of radius 'r' is
A) 2π
B) π/2 c)
C) π
D) 2πr
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