Physics Syllabus (JEE Main)

Q. In a nuclear reaction, what is the term for the energy released?
  • A. Kinetic energy
  • B. Potential energy
  • C. Binding energy
  • D. Nuclear energy
Q. In a nuclear reaction, what is the term for the mass difference between the reactants and products?
  • A. Mass defect
  • B. Binding energy
  • C. Nuclear fusion
  • D. Nuclear fission
Q. In a p-n junction diode, what happens when it is forward biased?
  • A. Depletion region widens
  • B. Current flows easily
  • C. No current flows
  • D. Reverse breakdown occurs
Q. In a p-n junction diode, what happens when it is reverse-biased?
  • A. Current flows freely
  • B. Depletion region widens
  • C. Holes move towards the n-side
  • D. Electrons move towards the p-side
Q. In a p-n junction, what is formed at the junction region?
  • A. Electric field
  • B. Magnetic field
  • C. Thermal field
  • D. Gravitational field
Q. In a p-n junction, what is the region called where no charge carriers are present?
  • A. Depletion region
  • B. Conduction band
  • C. Valence band
  • D. Neutral zone
Q. In a p-n junction, what is the region called where no charge carriers exist?
  • A. Depletion region
  • B. Conduction band
  • C. Valence band
  • D. Neutral zone
Q. In a parallel circuit with three resistors of 2Ω, 3Ω, and 6Ω, what is the equivalent resistance?
  • A.
  • B.
  • C.
  • D.
Q. In a parallel circuit with three resistors of 6 ohms, 12 ohms, and 18 ohms, what is the equivalent resistance?
  • A. 3 ohms
  • B. 4 ohms
  • C. 2 ohms
  • D. 1 ohm
Q. In a parallel circuit with three resistors of values 2Ω, 3Ω, and 6Ω, what is the equivalent resistance?
  • A.
  • B.
  • C.
  • D.
Q. In a parallel circuit with three resistors of values 6 ohms, 3 ohms, and 2 ohms, what is the equivalent resistance?
  • A. 1.5 ohms
  • B. 2 ohms
  • C. 2.5 ohms
  • D. 3 ohms
Q. In a parallel circuit with three resistors R1 = 2Ω, R2 = 3Ω, and R3 = 6Ω, what is the equivalent resistance?
  • A.
  • B.
  • C.
  • D.
Q. In a parallel circuit with two resistors of 4 ohms and 6 ohms, what is the equivalent resistance?
  • A. 2.4 ohms
  • B. 10 ohms
  • C. 24 ohms
  • D. 12 ohms
Q. In a parallel circuit with two resistors of 4 ohms and 6 ohms, what is the total current if the voltage across the circuit is 12V?
  • A. 2 A
  • B. 3 A
  • C. 4 A
  • D. 5 A
Q. In a parallel circuit with two resistors of 4 ohms and 6 ohms, what is the total current if the voltage across the circuit is 12 V?
  • A. 2 A
  • B. 3 A
  • C. 4 A
  • D. 5 A
Q. In a parallel circuit with two resistors of 4Ω and 6Ω, what is the total current if the voltage across the circuit is 12V?
  • A. 2A
  • B. 3A
  • C. 4A
  • D. 6A
Q. In a parallel circuit with two resistors of 6 ohms and 3 ohms, what is the equivalent resistance?
  • A. 2 ohms
  • B. 4 ohms
  • C. 1.5 ohms
  • D. 9 ohms
Q. In a parallel circuit with two resistors R1 = 6Ω and R2 = 3Ω, what is the equivalent resistance?
  • A.
  • B.
  • C. 1.5Ω
  • D.
Q. In a parallel circuit, if one resistor fails, what happens to the total current?
  • A. It increases.
  • B. It decreases.
  • C. It remains the same.
  • D. It becomes zero.
Q. In a parallel plate capacitor, if the area of the plates is doubled while keeping the separation constant, what happens to the capacitance?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a parallel plate capacitor, if the distance between the plates is doubled while keeping the charge constant, what happens to the electric potential?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a parallel plate capacitor, if the distance between the plates is halved, what happens to the capacitance?
  • A. It halves
  • B. It doubles
  • C. It remains the same
  • D. It quadruples
Q. In a parallel RLC circuit, what happens to the total current if the frequency is increased?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Depends on R
Q. In a photoelectric effect experiment, increasing the intensity of light increases the number of emitted electrons. What does this imply?
  • A. Light is a wave
  • B. Light is a particle
  • C. Energy of each photon increases
  • D. Number of photons increases
Q. In a photoelectric experiment, if the frequency of light is just above the threshold frequency, what can be said about the emitted electrons?
  • A. They have maximum kinetic energy
  • B. They are emitted with zero kinetic energy
  • C. They are emitted with high kinetic energy
  • D. No electrons are emitted
Q. In a photoelectric experiment, if the stopping potential is increased, what does it indicate about the emitted electrons?
  • A. They have higher kinetic energy
  • B. They have lower kinetic energy
  • C. They are emitted at a lower rate
  • D. They are not emitted
Q. In a photoelectric experiment, if the stopping potential is increased, what happens to the current?
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It becomes zero
Q. In a photoelectric experiment, if the stopping potential is increased, what happens to the energy of the emitted electrons?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes negative
Q. In a photoelectric experiment, if the stopping potential is increased, what happens to the maximum kinetic energy of the emitted electrons?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes zero
Q. In a physics experiment, the force applied is measured as 50 N with an uncertainty of ±1 N. What is the relative uncertainty in the force measurement?
  • A. 0.02
  • B. 0.01
  • C. 0.005
  • D. 0.1
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