Physics (School & Undergraduate)

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Physics (School & Undergraduate) MCQ & Objective Questions

Physics is a fundamental subject that plays a crucial role in school and undergraduate exams. Mastering Physics concepts not only enhances your understanding of the universe but also significantly boosts your exam scores. Practicing MCQs and objective questions helps you identify important topics and improves your problem-solving skills, making it an essential part of your exam preparation.

What You Will Practise Here

  • Newton's Laws of Motion and their applications
  • Work, Energy, and Power concepts and formulas
  • Waves and Sound: Properties and equations
  • Optics: Reflection, refraction, and lens formulas
  • Thermodynamics: Laws and key definitions
  • Electromagnetism: Basics of electric fields and circuits
  • Modern Physics: Introduction to quantum mechanics and relativity

Exam Relevance

Physics is a significant part of the curriculum for CBSE, State Boards, NEET, and JEE exams. Questions often focus on conceptual understanding and application of formulas. Common patterns include numerical problems, theoretical questions, and diagram-based queries. Familiarizing yourself with these patterns through practice is vital for success in these competitive exams.

Common Mistakes Students Make

  • Misunderstanding the application of Newton's Laws in different scenarios
  • Confusing work done with energy concepts
  • Overlooking the importance of units and dimensions in calculations
  • Neglecting to draw diagrams for problems related to optics and mechanics
  • Failing to relate theoretical concepts to practical examples

FAQs

Question: What are some effective ways to prepare for Physics MCQs?
Answer: Regular practice of MCQs, understanding key concepts, and revising important formulas are effective strategies for preparation.

Question: How can I improve my problem-solving speed in Physics exams?
Answer: Practice timed quizzes and focus on solving a variety of problems to enhance your speed and accuracy.

Don't wait any longer! Start solving practice MCQs today to test your understanding and boost your confidence in Physics. Remember, consistent practice is the key to mastering important Physics (School & Undergraduate) questions for exams.

Q. In an AC circuit, what is the relationship between voltage and current in a purely resistive load?
  • A. Voltage leads current by 90 degrees
  • B. Current leads voltage by 90 degrees
  • C. Voltage and current are in phase
  • D. Voltage and current are out of phase
Q. In an AC circuit, what is the term for the maximum voltage?
  • A. RMS voltage
  • B. Peak voltage
  • C. Average voltage
  • D. Impedance
Q. In an ideal gas, if the temperature is doubled while keeping the volume constant, what happens to the pressure?
  • A. It halves
  • B. It doubles
  • C. It quadruples
  • D. It remains the same
Q. In an ideal gas, what happens to the pressure if the volume is halved while keeping the temperature constant?
  • A. Pressure doubles
  • B. Pressure halves
  • C. Pressure remains the same
  • D. Pressure quadruples
Q. In an ideal gas, what is the relationship between pressure and temperature at constant volume?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. In an ideal gas, what is the relationship between the average kinetic energy and the absolute temperature?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. In an isothermal process, what remains constant?
  • A. Pressure
  • B. Volume
  • C. Temperature
  • D. Internal energy
Q. In an RC circuit, if the capacitor is fully charged, what is the current through the circuit?
  • A. Maximum current
  • B. Zero current
  • C. Current equals voltage
  • D. Current equals resistance
Q. In an RC circuit, what happens to the current as time approaches infinity after the switch is closed?
  • A. It approaches zero.
  • B. It approaches the maximum value V/R.
  • C. It oscillates indefinitely.
  • D. It becomes negative.
Q. In an RC circuit, what happens to the voltage across the capacitor as time approaches infinity after a switch is closed?
  • A. It remains zero.
  • B. It equals the supply voltage.
  • C. It oscillates.
  • D. It becomes negative.
Q. In an RC circuit, what is the relationship between the time constant (τ) and the cutoff frequency (f_c)?
  • A. f_c = 1 / (2πτ)
  • B. f_c = 2πτ
  • C. f_c = τ
  • D. f_c = 1 / τ
Q. In an RC circuit, what is the time constant (τ) defined as?
  • A. τ = R*C
  • B. τ = R+C
  • C. τ = R/C
  • D. τ = C/R
Q. In an RC circuit, what is the time constant if R = 2 kΩ and C = 10 µF?
  • A. 20 ms
  • B. 2 ms
  • C. 200 ms
  • D. 0.2 s
Q. In an RC circuit, what is the time constant if R = 4 kΩ and C = 10 µF?
  • A. 40 ms
  • B. 20 ms
  • C. 30 ms
  • D. 50 ms
Q. In electromagnetic induction, what does the term 'flux linkage' refer to?
  • A. The product of magnetic field and area
  • B. The total magnetic flux through a coil
  • C. The induced emf in a circuit
  • D. The resistance of the coil
Q. In nuclear fission, what is typically released along with energy?
  • A. Neutrons
  • B. Protons
  • C. Electrons
  • D. Photons
Q. In quantum mechanics, what does the Heisenberg Uncertainty Principle state?
  • A. You cannot know both the position and momentum of a particle with absolute certainty.
  • B. Energy and mass are interchangeable.
  • C. Particles can exist in multiple states simultaneously.
  • D. Light behaves only as a wave.
Q. In quantum mechanics, what does the wave function represent?
  • A. The exact position of a particle
  • B. The probability distribution of a particle's position
  • C. The energy of a particle
  • D. The speed of a particle
Q. In rotational dynamics, what does the moment of inertia depend on?
  • A. Mass and shape of the object
  • B. Only the mass of the object
  • C. Only the shape of the object
  • D. Mass and velocity of the object
Q. In rotational dynamics, what is the moment of inertia of a point mass m at a distance r from the axis of rotation?
  • A. m * r^2
  • B. m / r^2
  • C. m + r^2
  • D. m - r^2
Q. In rotational dynamics, what is the moment of inertia?
  • A. The rotational analog of mass.
  • B. The torque applied to an object.
  • C. The angular velocity of an object.
  • D. The linear momentum of an object.
Q. In semiconductors, what is the effect of doping?
  • A. It increases the conductivity by adding impurities.
  • B. It decreases the conductivity by removing electrons.
  • C. It creates a vacuum in the material.
  • D. It makes the material completely non-conductive.
Q. In simple harmonic motion, what is the maximum displacement from the equilibrium position called?
  • A. Amplitude
  • B. Frequency
  • C. Period
  • D. Wavelength
Q. In simple harmonic motion, what is the relationship between the displacement and the restoring force?
  • A. Directly proportional
  • B. Inversely proportional
  • C. Independent
  • D. Constant
Q. In simple harmonic motion, what type of energy is at its maximum when the displacement is at its maximum?
  • A. Kinetic energy
  • B. Potential energy
  • C. Total energy
  • D. Mechanical energy
Q. In terms of stability, what is the effect of lowering the center of mass of a rolling object?
  • A. Increases stability
  • B. Decreases stability
  • C. No effect on stability
  • D. Depends on the object's shape
Q. In the Doppler effect, what happens to the frequency of a sound wave as the source moves towards the observer?
  • A. It decreases
  • B. It remains the same
  • C. It increases
  • D. It becomes zero
Q. In the kinetic theory of gases, which of the following assumptions is NOT true?
  • A. Gas molecules are in constant random motion
  • B. Gas molecules occupy a negligible volume
  • C. Gas molecules experience no intermolecular forces
  • D. Gas molecules have significant mass
Q. In the kinetic theory, what is assumed about the collisions between gas molecules?
  • A. They are perfectly elastic
  • B. They are perfectly inelastic
  • C. They lose energy
  • D. They are not considered
Q. In the photoelectric effect, what happens when light of sufficient frequency hits a metal surface?
  • A. Electrons are emitted from the surface
  • B. Photons are absorbed by the metal
  • C. The metal becomes ionized
  • D. Heat is generated in the metal
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