Q. In measurements, what does precision refer to? (2022)
  • A. Closeness to the true value
  • B. Consistency of repeated measurements
  • C. Range of values
  • D. Average of measurements
Q. In measurements, what does the term 'precision' refer to? (2022)
  • A. Closeness to the true value
  • B. Consistency of repeated measurements
  • C. Range of values
  • D. Average of measurements
Q. In nuclear fission, the mass of the products is less than the mass of the reactants. What is this mass difference called? (2019)
  • A. Nuclear mass
  • B. Binding energy
  • C. Mass defect
  • D. Fission energy
Q. In nuclear fission, the mass of the products is less than the mass of the reactants. What is this mass difference converted into? (2019)
  • A. Kinetic energy
  • B. Potential energy
  • C. Binding energy
  • D. Radiation
Q. In nuclear fission, what is released as a result of the reaction? (2022)
  • A. Energy and neutrons
  • B. Only energy
  • C. Only neutrons
  • D. Protons and electrons
Q. In nuclear fission, what is released? (2022)
  • A. Energy and neutrons
  • B. Only energy
  • C. Only neutrons
  • D. Protons and electrons
Q. In nuclear reactions, what is conserved? (2022)
  • A. Mass only
  • B. Charge only
  • C. Mass and charge
  • D. Energy only
Q. In the context of atomic structure, what does the term 'isotope' refer to? (2021)
  • A. Atoms with the same number of protons but different neutrons
  • B. Atoms with different numbers of protons
  • C. Atoms with the same mass number
  • D. Atoms that are chemically identical
Q. In the context of atomic structure, what does the term 'quantum leap' refer to? (2022)
  • A. Movement of electrons in a circular path
  • B. Transition of an electron between energy levels
  • C. Emission of light
  • D. Absorption of energy
Q. In the context of measurements, what does precision refer to? (2022)
  • A. Closeness to the true value
  • B. Consistency of repeated measurements
  • C. Range of values
  • D. Average of measurements
Q. In the hydrogen atom, which transition would emit the photon with the highest energy? (2019)
  • A. n=2 to n=1
  • B. n=3 to n=2
  • C. n=4 to n=3
  • D. n=5 to n=4
Q. In the kinetic theory of gases, the temperature of a gas is a measure of: (2022)
  • A. The average potential energy of the molecules
  • B. The average kinetic energy of the molecules
  • C. The total energy of the gas
  • D. The number of molecules in the gas
Q. In the kinetic theory of gases, the term 'elastic collision' means: (2019)
  • A. Kinetic energy is conserved
  • B. Momentum is conserved
  • C. Both kinetic energy and momentum are conserved
  • D. Neither kinetic energy nor momentum is conserved
Q. In the kinetic theory, the internal energy of an ideal gas is primarily due to:
  • A. Potential energy
  • B. Kinetic energy of molecules
  • C. Work done on the gas
  • D. Heat energy
Q. In the kinetic theory, the temperature of a gas is a measure of: (2022)
  • A. The average potential energy of the molecules
  • B. The average kinetic energy of the molecules
  • C. The total energy of the gas
  • D. The speed of the gas molecules
Q. In the photoelectric effect, what happens to the kinetic energy of emitted electrons as the frequency of incident light increases? (2021)
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Becomes zero
Q. In the photoelectric effect, what happens to the kinetic energy of emitted electrons when the frequency of incident light is increased? (2021)
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Becomes zero
Q. In the photoelectric effect, what happens when the frequency of incident light is increased? (2020)
  • A. More electrons are emitted
  • B. Electrons are emitted with higher energy
  • C. No electrons are emitted
  • D. The current decreases
Q. In thin film interference, which of the following will not affect the interference pattern? (2022)
  • A. Thickness of the film
  • B. Wavelength of light
  • C. Angle of incidence
  • D. Color of the light source
Q. In which case does total internal reflection occur? (2022)
  • A. When light travels from a denser to a rarer medium
  • B. When light travels from a rarer to a denser medium
  • C. At the critical angle
  • D. None of the above
Q. In which direction does the magnetic field point inside a solenoid carrying current? (2023)
  • A. From south to north
  • B. From north to south
  • C. Perpendicular to the axis
  • D. It is zero
Q. In which process does a substance change from solid to gas without becoming liquid? (2022)
  • A. Melting
  • B. Sublimation
  • C. Condensation
  • D. Evaporation
Q. In which process does a substance change from solid to gas? (2022)
  • A. Melting
  • B. Sublimation
  • C. Evaporation
  • D. Condensation
Q. In which type of collision is kinetic energy conserved? (2019)
  • A. Elastic collision
  • B. Inelastic collision
  • C. Perfectly inelastic collision
  • D. All of the above
Q. The average speed of gas molecules is given by the formula:
  • A. (8kT/πm)^(1/2)
  • B. (3kT/m)^(1/2)
  • C. (2kT/m)^(1/2)
  • D. (kT/m)^(1/2)
Q. The average speed of gas molecules is given by which of the following expressions? (2022)
  • A. √(8RT/πM)
  • B. √(3RT/M)
  • C. √(2RT/M)
  • D. √(RT/M)
Q. The average speed of gas molecules is given by which of the following formulas? (2023)
  • A. (8kT/πm)^(1/2)
  • B. (3kT/m)^(1/2)
  • C. (2kT/m)^(1/2)
  • D. (kT/m)^(1/2)
Q. The buoyant force acting on an object submerged in a fluid is equal to:
  • A. The weight of the object
  • B. The weight of the fluid displaced
  • C. The density of the object
  • D. The pressure of the fluid
Q. The buoyant force on an object submerged in a fluid is equal to: (2022)
  • A. The weight of the object
  • B. The weight of the fluid displaced
  • C. The density of the object
  • D. The volume of the object
Q. The capacitance of a parallel plate capacitor is directly proportional to which of the following? (2019)
  • A. Distance between plates
  • B. Area of plates
  • C. Voltage across plates
  • D. Dielectric constant
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