Physics Syllabus (JEE Main)

Q. What is the primary cause of buoyancy in fluids?
  • A. Surface tension
  • B. Pressure difference
  • C. Viscosity
  • D. Density
Q. What is the primary cause of capillary action in liquids?
  • A. Cohesion
  • B. Adhesion
  • C. Viscosity
  • D. Density
Q. What is the primary cause of surface tension in liquids?
  • A. Cohesive forces
  • B. Adhesive forces
  • C. Gravitational forces
  • D. Electromagnetic forces
Q. What is the primary cause of the phenomenon known as capillarity?
  • A. Cohesion
  • B. Adhesion
  • C. Viscosity
  • D. Density
Q. What is the primary cause of the phenomenon of buoyancy?
  • A. Surface tension
  • B. Pressure difference
  • C. Viscosity
  • D. Density
Q. What is the primary cause of the phenomenon of capillarity?
  • A. Cohesion
  • B. Adhesion
  • C. Viscosity
  • D. Density
Q. What is the primary cause of viscosity in fluids?
  • A. Molecular interactions
  • B. Temperature
  • C. Pressure
  • D. Density
Q. What is the primary charge carrier in n-type semiconductors?
  • A. Holes
  • B. Electrons
  • C. Protons
  • D. Neutrons
Q. What is the primary charge carrier in P-type semiconductors?
  • A. Electrons
  • B. Holes
  • C. Protons
  • D. Neutrons
Q. What is the primary factor affecting the rate of heat transfer by conduction?
  • A. Surface area
  • B. Temperature difference
  • C. Material properties
  • D. All of the above
Q. What is the primary factor that affects the viscosity of a gas?
  • A. Temperature
  • B. Pressure
  • C. Density
  • D. Molecular weight
Q. What is the primary factor that determines the viscosity of a fluid?
  • A. Temperature
  • B. Pressure
  • C. Density
  • D. Molecular size
Q. What is the primary force acting on a satellite in a stable orbit around the Earth?
  • A. Gravitational force
  • B. Electromagnetic force
  • C. Frictional force
  • D. Centrifugal force
Q. What is the primary force that holds the nucleus of an atom together?
  • A. Electromagnetic force
  • B. Gravitational force
  • C. Strong nuclear force
  • D. Weak nuclear force
Q. What is the primary force that holds the nucleus together?
  • A. Electromagnetic force
  • B. Gravitational force
  • C. Strong nuclear force
  • D. Weak nuclear force
Q. What is the primary force that holds the protons and neutrons together in the nucleus?
  • A. Electromagnetic force
  • B. Gravitational force
  • C. Strong nuclear force
  • D. Weak nuclear force
Q. What is the primary function of a diode in a circuit?
  • A. Amplification
  • B. Rectification
  • C. Capacitance
  • D. Inductance
Q. What is the primary function of a modulator in a communication system?
  • A. To amplify the signal
  • B. To convert the signal into a suitable form for transmission
  • C. To demodulate the received signal
  • D. To filter out noise
Q. What is the primary function of a transistor in semiconductor technology?
  • A. Switching
  • B. Storage
  • C. Transmission
  • D. Resistance
Q. What is the primary function of a transistor?
  • A. Rectification
  • B. Amplification
  • C. Capacitance
  • D. Inductance
Q. What is the primary function of a transponder in satellite communication?
  • A. To amplify the signal
  • B. To receive and retransmit signals
  • C. To modulate the signal
  • D. To filter out noise
Q. What is the primary function of an antenna in a communication system?
  • A. To amplify the signal
  • B. To convert electrical signals into electromagnetic waves
  • C. To modulate the signal
  • D. To demodulate the signal
Q. What is the primary mechanism of current flow in semiconductors?
  • A. Electron flow only
  • B. Hole flow only
  • C. Both electron and hole flow
  • D. Ionic flow
Q. What is the primary mechanism of heat transfer in a vacuum?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. None of the above
Q. What is the primary mechanism of heat transfer in liquids and gases?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. What is the primary mechanism of heat transfer in liquids?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. All of the above
Q. What is the primary method of heat transfer from the Sun to the Earth?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Conduction and Convection
Q. What is the primary mode of heat transfer from the Sun to the Earth?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Conduction and Convection
Q. What is the primary mode of heat transfer in a vacuum?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. What is the primary mode of heat transfer in liquids and gases?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. None of the above
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