Major Competitive Exams

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Q. Which law states that energy cannot be created or destroyed, only transformed? (2021)
  • A. Zeroth Law
  • B. First Law
  • C. Second Law
  • D. Third Law
Q. Which law states that energy cannot be created or destroyed?
  • A. Zeroth law
  • B. First law
  • C. Second law
  • D. Third law
Q. Which law states that for every action, there is an equal and opposite reaction? (2022)
  • A. Newton's First Law
  • B. Newton's Second Law
  • C. Newton's Third Law
  • D. Law of Conservation of Momentum
Q. Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points? (2021)
  • A. Ohm's Law
  • B. Kirchhoff's Law
  • C. Faraday's Law
  • D. Ampere's Law
Q. Which law states that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero?
  • A. Zeroth law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Third law of thermodynamics
Q. Which law states that the entropy of an isolated system always increases? (2021)
  • A. Zeroth law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Third law of thermodynamics
Q. Which law states that the entropy of an isolated system never decreases? (2021)
  • A. Zeroth law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Third law of thermodynamics
Q. Which law states that the heat absorbed or released by a substance is proportional to the change in temperature? (2021)
  • A. Boyle's Law
  • B. Charles's Law
  • C. Newton's Law of Cooling
  • D. Calorimetry
Q. Which law states that the induced electromotive force (emf) in a closed circuit is proportional to the rate of change of magnetic flux through the circuit?
  • A. Faraday's law
  • B. Ampere's law
  • C. Ohm's law
  • D. Lenz's law
Q. Which law states that the induced electromotive force (emf) in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
  • A. Faraday's Law
  • B. Lenz's Law
  • C. Ohm's Law
  • D. Ampere's Law
Q. Which law states that the induced electromotive force is proportional to the rate of change of magnetic flux? (2022)
  • A. Faraday's Law
  • B. Lenz's Law
  • C. Ohm's Law
  • D. Ampere's Law
Q. Which law states that the induced EMF in a circuit is proportional to the rate of change of magnetic flux through the circuit? (2022)
  • A. Faraday's Law
  • B. Lenz's Law
  • C. Ohm's Law
  • D. Ampere's Law
Q. Which law states that the induced EMF in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
  • A. Faraday's Law
  • B. Lenz's Law
  • C. Ohm's Law
  • D. Ampere's Law
Q. Which law states that the pressure of a gas is directly proportional to its temperature at constant volume? (2019)
  • A. Boyle's Law
  • B. Charles's Law
  • C. Gay-Lussac's Law
  • D. Avogadro's Law
Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference across it?
  • A. Newton's Law of Cooling
  • B. Fourier's Law
  • C. Stefan-Boltzmann Law
  • D. Ohm's Law
Q. Which law states that the rate of heat transfer through a material is proportional to the temperature gradient?
  • A. Newton's Law of Cooling
  • B. Fourier's Law of Heat Conduction
  • C. Stefan-Boltzmann Law
  • D. Kirchhoff's Law
Q. Which law states that the rate of heat transfer through a material is proportional to the negative gradient of temperature?
  • A. Newton's Law of Cooling
  • B. Fourier's Law of Heat Conduction
  • C. Stefan-Boltzmann Law
  • D. Kirchhoff's Law
Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference? (2022)
  • A. Newton's Law of Cooling
  • B. Fourier's Law
  • C. Stefan-Boltzmann Law
  • D. Boyle's Law
Q. Which law states that the total energy in an isolated system remains constant?
  • A. Law of Conservation of Energy
  • B. Newton's First Law
  • C. Hooke's Law
  • D. Ohm's Law
Q. Which law states that the total energy of an isolated system remains constant?
  • A. First law of thermodynamics
  • B. Second law of thermodynamics
  • C. Zeroth law of thermodynamics
  • D. Third law of thermodynamics
Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?
  • A. First Law of Thermodynamics
  • B. Second Law of Thermodynamics
  • C. Hess's Law
  • D. Gibbs Free Energy
Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
  • A. First Law of Thermodynamics
  • B. Second Law of Thermodynamics
  • C. Hess's Law
  • D. Gibbs Free Energy
Q. Which law states that the total entropy of an isolated system can never decrease over time?
  • A. Zeroth Law
  • B. First Law
  • C. Second Law
  • D. Third Law
Q. Which law states that the total momentum of a closed system remains constant?
  • A. Newton's First Law
  • B. Newton's Second Law
  • C. Conservation of Momentum
  • D. Conservation of Energy
Q. Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components?
  • A. Dalton's Law
  • B. Boyle's Law
  • C. Charles's Law
  • D. Avogadro's Law
Q. Which law states that the volume of a gas is directly proportional to its temperature at constant pressure?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. Which layer of the atmosphere contains the ozone layer? (2020)
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Q. Which layer of the Earth is directly beneath the crust?
  • A. Mantle
  • B. Outer Core
  • C. Inner Core
  • D. Lithosphere
Q. Which layer of the Earth is liquid? (2021)
  • A. Crust
  • B. Mantle
  • C. Outer Core
  • D. Inner Core
Q. Which layer of the Earth is primarily composed of iron and nickel? (2020)
  • A. Crust
  • B. Mantle
  • C. Outer Core
  • D. Inner Core
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