Physics Syllabus (JEE Main)

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Q. What happens to the viscosity of a liquid as temperature increases?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Varies unpredictably
Q. What happens to the viscosity of gases with an increase in temperature?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Varies randomly
Q. What happens to the voltage across a capacitor when it is fully charged?
  • A. It becomes zero
  • B. It equals the supply voltage
  • C. It becomes negative
  • D. It fluctuates
Q. What happens to the volume of a gas if its temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains constant
  • D. It becomes zero
Q. What happens to the volume of a gas when its temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains constant
  • D. It becomes zero
Q. What happens to the weight of an object when it is taken to a height equal to the radius of the Earth?
  • A. It becomes zero
  • B. It is halved
  • C. It is doubled
  • D. It remains the same
Q. What happens to the Young's modulus of a material as temperature increases?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Becomes zero
Q. What happens to the Young's modulus of a material when it is heated?
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It becomes zero
Q. What is Brewster's angle for a medium with a refractive index of 1.5?
  • A. 30 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. 53 degrees
Q. What is Brewster's angle?
  • A. The angle at which light is completely absorbed
  • B. The angle at which light is reflected with maximum polarization
  • C. The angle at which light refracts without any reflection
  • D. The angle at which light travels fastest
Q. What is Lenz's law?
  • A. The direction of induced current opposes the change in magnetic flux
  • B. The induced current flows in the same direction as the change in magnetic flux
  • C. The induced EMF is always positive
  • D. The magnetic field is always perpendicular to the current
Q. What is Poisson's ratio?
  • A. Lateral strain/Longitudinal strain
  • B. Longitudinal strain/Lateral strain
  • C. Stress/Strain
  • D. Strain/Stress
Q. What is self-inductance?
  • A. The ability of a coil to induce EMF in itself
  • B. The ability of a coil to induce EMF in another coil
  • C. The resistance of a coil to current flow
  • D. The capacitance of a coil
Q. What is self-induction?
  • A. Induction of EMF in a coil due to its own changing current
  • B. Induction of EMF in a coil due to an external magnetic field
  • C. Induction of current in a conductor due to a magnetic field
  • D. Induction of voltage in a capacitor
Q. What is surface tension?
  • A. Force per unit length
  • B. Energy per unit area
  • C. Pressure difference
  • D. Viscosity of a liquid
Q. What is the acceleration due to gravity at a height equal to the radius of the Earth?
  • A. g/2
  • B. g/3
  • C. g/4
  • D. g/5
Q. What is the acceleration of a rolling object down an incline if the incline angle is θ?
  • A. g sin(θ)
  • B. g sin(θ)/2
  • C. g sin(θ)/3
  • D. g sin(θ)/4
Q. What is the angle between the velocity vector and the acceleration vector of an object moving in uniform circular motion?
  • A.
  • B. 45°
  • C. 90°
  • D. 180°
Q. What is the angle of incidence at which light is completely polarized upon reflection?
  • A. 0 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. Brewster's angle
Q. What is the angular momentum of a rolling object about its center of mass?
  • A. mv
  • B.
  • C. mv + Iω
  • D. 0
Q. What is the angular velocity of a wheel rotating at 300 revolutions per minute?
  • A. 10π rad/s
  • B. 20π rad/s
  • C. 30π rad/s
  • D. 40π rad/s
Q. What is the angular velocity of a wheel that makes 10 revolutions in 5 seconds?
  • A. 2π rad/s
  • B. 4π rad/s
  • C. 10π rad/s
  • D. 20π rad/s
Q. What is the approximate energy released in MeV during the fission of one uranium-235 nucleus?
  • A. 0.1 MeV
  • B. 1 MeV
  • C. 200 MeV
  • D. 1000 MeV
Q. What is the average kinetic energy of a gas molecule at temperature T?
  • A. (3/2)kT
  • B. (1/2)kT
  • C. (3/2)RT
  • D. (1/2)RT
Q. What is the average kinetic energy of one mole of an ideal gas at temperature T?
  • A. (3/2)RT
  • B. (5/2)RT
  • C. (1/2)RT
  • D. (2/3)RT
Q. What is the average power consumed in an AC circuit with a power factor of 0.8 and an RMS voltage of 100 V with a current of 5 A?
  • A. 200 W
  • B. 400 W
  • C. 300 W
  • D. 500 W
Q. What is the average power consumed in an AC circuit with a power factor of 0.8 and a maximum power of 100 W?
  • A. 80 W
  • B. 100 W
  • C. 120 W
  • D. 160 W
Q. What is the band gap energy of a typical semiconductor?
  • A. 0 eV
  • B. 1-3 eV
  • C. 5 eV
  • D. 10 eV
Q. What is the band gap energy of a typical silicon semiconductor?
  • A. 0.1 eV
  • B. 1.1 eV
  • C. 2.0 eV
  • D. 3.5 eV
Q. What is the band gap energy of silicon at room temperature?
  • A. 0.1 eV
  • B. 1.1 eV
  • C. 2.0 eV
  • D. 3.5 eV
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