Physics Syllabus (JEE Main)

Q. In a fluid flowing through a pipe, what effect does increasing the temperature have on its viscosity?
  • A. Increases viscosity
  • B. Decreases viscosity
  • C. No effect
  • D. Depends on the fluid
Q. In a fluid flowing through a pipe, which factor does NOT affect the viscosity?
  • A. Temperature
  • B. Pressure
  • C. Fluid density
  • D. Fluid composition
Q. In a forced oscillation system, if the driving frequency is equal to the natural frequency, what phenomenon occurs?
  • A. Damping
  • B. Resonance
  • C. Phase shift
  • D. Destructive interference
Q. In a forced oscillation system, the driving frequency is 5 Hz and the natural frequency is 4 Hz. What is the ratio of the driving frequency to the natural frequency?
  • A. 0.8
  • B. 1
  • C. 1.25
  • D. 1.5
Q. In a forced oscillation system, what is the effect of increasing the amplitude of the driving force?
  • A. Decreases the amplitude of oscillation
  • B. Increases the amplitude of oscillation
  • C. Has no effect on amplitude
  • D. Causes the system to stop oscillating
Q. In a forced oscillation, if the amplitude is doubled while keeping the driving frequency constant, what happens to the energy of the system?
  • A. Increases by 2 times
  • B. Increases by 4 times
  • C. Remains the same
  • D. Decreases
Q. In a forced oscillation, if the amplitude is maximum, what can be said about the relationship between the driving frequency and the natural frequency?
  • A. Driving frequency is less
  • B. Driving frequency is equal
  • C. Driving frequency is greater
  • D. Driving frequency is unpredictable
Q. In a forced oscillation, if the amplitude of the oscillation is directly proportional to the driving force, what is the relationship called?
  • A. Hooke's Law
  • B. Newton's Law
  • C. Resonance
  • D. Steady state
Q. In a forced oscillation, the driving frequency is 2 Hz and the natural frequency of the system is 1.5 Hz. What is the ratio of the driving frequency to the natural frequency?
  • A. 0.5
  • B. 1
  • C. 1.33
  • D. 2
Q. In a forced oscillation, what happens when the driving frequency matches the natural frequency of the system?
  • A. The system oscillates with minimum amplitude
  • B. The system oscillates with maximum amplitude
  • C. The system stops oscillating
  • D. The system oscillates at a different frequency
Q. In a forced oscillation, what happens when the driving frequency matches the natural frequency?
  • A. The system oscillates with minimum amplitude
  • B. The system oscillates with maximum amplitude
  • C. The system stops oscillating
  • D. The system oscillates at a different frequency
Q. In a forced oscillation, what is the effect of increasing the amplitude of the driving force?
  • A. Decreases the amplitude of oscillation
  • B. Increases the amplitude of oscillation
  • C. Has no effect on amplitude
  • D. Causes the system to stop oscillating
Q. In a forced oscillation, what is the effect of resonance?
  • A. Amplitude decreases
  • B. Amplitude increases significantly
  • C. Frequency decreases
  • D. Phase difference becomes zero
Q. In a forced oscillation, what is the term for the maximum amplitude achieved at resonance?
  • A. Resonance peak
  • B. Damping peak
  • C. Natural frequency
  • D. Driving frequency
Q. In a gas mixture, the total pressure is equal to the sum of the partial pressures of the individual gases. This is known as:
  • A. Dalton's Law
  • B. Boyle's Law
  • C. Charles's Law
  • D. Ideal Gas Law
Q. In a gas mixture, what is the partial pressure of a gas?
  • A. Total pressure of the mixture
  • B. Pressure exerted by the gas alone
  • C. Pressure exerted by all gases
  • D. Pressure at absolute zero
Q. In a gas mixture, which law can be used to find the total pressure exerted by the gases?
  • A. Dalton's Law of Partial Pressures
  • B. Boyle's Law
  • C. Charles's Law
  • D. Ideal Gas Law
Q. In a gas, if the volume is halved while keeping the temperature constant, what happens to the pressure?
  • A. It remains the same.
  • B. It doubles.
  • C. It halves.
  • D. It quadruples.
Q. In a gas, the distribution of molecular speeds is described by which law?
  • A. Maxwell-Boltzmann distribution
  • B. Bernoulli's principle
  • C. Boyle's law
  • D. Charles's law
Q. In a gas, the mean free path is defined as the average distance traveled by a molecule between collisions. Which factor does NOT affect the mean free path?
  • A. Temperature
  • B. Pressure
  • C. Molecular diameter
  • D. Color of the gas
Q. In a generator, if the speed of rotation is doubled, what happens to the induced EMF?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It becomes zero
Q. In a generator, mechanical energy is converted into electrical energy through the principle of:
  • A. Electrostatics
  • B. Electromagnetic induction
  • C. Thermodynamics
  • D. Optics
Q. In a generator, mechanical energy is converted into electrical energy through which process?
  • A. Electromagnetic induction
  • B. Thermal conduction
  • C. Photoelectric effect
  • D. Electrolysis
Q. In a generator, mechanical energy is converted into electrical energy through which principle?
  • A. Electromagnetic induction
  • B. Thermal conduction
  • C. Photoelectric effect
  • D. Capacitance
Q. In a generator, what is the role of the rotating coil in a magnetic field?
  • A. To create a magnetic field
  • B. To induce current
  • C. To store energy
  • D. To measure voltage
Q. In a gravitational field, the potential energy of an object is maximum at which point?
  • A. At the surface of the Earth
  • B. At infinity
  • C. At the center of the Earth
  • D. At the highest point in the field
Q. In a harmonic oscillator, the total mechanical energy is constant. What is the form of this energy?
  • A. Kinetic energy only
  • B. Potential energy only
  • C. Sum of kinetic and potential energy
  • D. None of the above
Q. In a heat engine, if the input heat is 800 J and the work output is 300 J, what is the efficiency?
  • A. 37.5%
  • B. 50%
  • C. 62.5%
  • D. 75%
Q. In a heat engine, if the work done is 200 J and the heat absorbed is 500 J, what is the efficiency?
  • A. 40%
  • B. 50%
  • C. 60%
  • D. 80%
Q. In a heat engine, if the work output is 200 J and the heat input is 600 J, what is the efficiency?
  • A. 33.33%
  • B. 50%
  • C. 66.67%
  • D. 75%
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