Q. What is the phase difference between two waves that interfere constructively?
  • A. 0
  • B. π/2
  • C. π
  • D. 3π/2
Q. What is the phase difference between two waves that interfere destructively?
  • A. 0 radians
  • B. π/2 radians
  • C. π radians
  • D. 3π/2 radians
Q. What is the phenomenon called when a changing magnetic field induces an electric current in a conductor?
  • A. Electromagnetic induction
  • B. Electrolysis
  • C. Magnetic resonance
  • D. Thermal conduction
Q. What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a circuit?
  • A. Electromagnetic induction
  • B. Magnetic resonance
  • C. Electrolysis
  • D. Magnetization
Q. What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a conductor?
  • A. Electromagnetic induction
  • B. Magnetic resonance
  • C. Electrolysis
  • D. Magnetization
Q. What is the phenomenon called when a conductor moves through a magnetic field and generates an electric current?
  • A. Electromagnetic induction
  • B. Magnetic hysteresis
  • C. Electrostatic induction
  • D. Magnetic flux
Q. What is the phenomenon called when a liquid changes to gas at a temperature below its boiling point?
  • A. Evaporation
  • B. Condensation
  • C. Sublimation
  • D. Freezing
Q. What is the phenomenon called when a liquid changes to gas at temperatures below its boiling point?
  • A. Evaporation
  • B. Condensation
  • C. Sublimation
  • D. Vaporization
Q. What is the phenomenon called when a liquid rises in a narrow tube against gravity?
  • A. Capillarity
  • B. Viscosity
  • C. Surface tension
  • D. Hydrostatic pressure
Q. What is the phenomenon called when an electron transitions from a higher energy level to a lower energy level in an atom?
  • A. Ionization
  • B. Excitation
  • C. Emission
  • D. Absorption
Q. What is the phenomenon called when electrons are emitted from a metal surface when it is exposed to light?
  • A. Photoelectric effect
  • B. Compton effect
  • C. Rayleigh scattering
  • D. Black body radiation
Q. What is the phenomenon called when light waves are restricted to vibrate in a single plane?
  • A. Refraction
  • B. Diffraction
  • C. Polarization
  • D. Interference
Q. What is the phenomenon called when light waves bend around the edges of an obstacle?
  • A. Reflection
  • B. Refraction
  • C. Diffraction
  • D. Interference
Q. What is the phenomenon called when sound waves bend around obstacles?
  • A. Reflection
  • B. Refraction
  • C. Diffraction
  • D. Interference
Q. What is the phenomenon of diffraction primarily associated with?
  • A. Reflection of light
  • B. Bending of waves around obstacles
  • C. Interference of waves
  • D. Polarization of light
Q. What is the phenomenon of diffraction primarily responsible for?
  • A. Bending of light around obstacles
  • B. Reflection of light
  • C. Refraction of light
  • D. Polarization of light
Q. What is the phenomenon of electromagnetic induction?
  • A. The generation of electric current by a changing magnetic field
  • B. The generation of magnetic field by a changing electric current
  • C. The interaction between electric and magnetic fields
  • D. The conversion of mechanical energy into electrical energy
Q. What is the phenomenon of polarization in light?
  • A. The splitting of light into different colors
  • B. The alignment of light waves in a particular direction
  • C. The reflection of light off a surface
  • D. The bending of light as it passes through a medium
Q. What is the photoelectric effect primarily used for in technology?
  • A. Solar panels
  • B. LEDs
  • C. Lasers
  • D. Television screens
Q. What is the photoelectric effect?
  • A. Emission of electrons from a metal surface when light shines on it
  • B. Absorption of light by a metal surface
  • C. Reflection of light from a metal surface
  • D. Transmission of light through a metal surface
Q. What is the pKa value of acetic acid?
  • A. 4.76
  • B. 7.00
  • C. 9.25
  • D. 2.00
Q. What is the pKb value of a strong base?
  • A. Less than 0
  • B. Equal to 0
  • C. Greater than 0
  • D. Equal to 14
Q. What is the pKb value of a weak base?
  • A. Less than 7
  • B. Equal to 7
  • C. Greater than 7
  • D. None of the above
Q. What is the potential at a distance of 1 m from a dipole with a dipole moment of 2 × 10^-9 C·m?
  • A. 0 V
  • B. 1 V
  • C. 2 V
  • D. 4 V
Q. What is the potential difference across a 10 ohm resistor carrying a current of 2A?
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 20V
Q. What is the potential difference across a 10Ω resistor if a current of 2A flows through it?
  • A. 5V
  • B. 10V
  • C. 20V
  • D. 15V
Q. What is the potential difference across a 10Ω resistor if a current of 4A flows through it?
  • A. 20V
  • B. 40V
  • C. 10V
  • D. 30V
Q. What is the potential difference across a 5 Ω resistor carrying a current of 2 A?
  • A. 10 V
  • B. 5 V
  • C. 2 V
  • D. 0 V
Q. What is the potential difference across the galvanometer in a balanced Wheatstone bridge?
  • A. Zero
  • B. Equal to the supply voltage
  • C. Depends on the resistances
  • D. Half of the supply voltage
Q. What is the potential difference between two points A and B if the electric field is uniform and equal to 50 N/C, and the distance between A and B is 2m?
  • A. 100 V
  • B. 50 V
  • C. 25 V
  • D. 0 V
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