Major Competitive Exams

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Q. What is the effect of increasing the speed of a conductor moving through a magnetic field on the induced EMF?
  • A. Increases the induced EMF
  • B. Decreases the induced EMF
  • C. No effect on the induced EMF
  • D. Induced EMF becomes zero
Q. What is the effect of increasing the speed of a magnet moving through a coil?
  • A. Induced current decreases
  • B. Induced current increases
  • C. No change in induced current
  • D. Induced current becomes zero
Q. What is the effect of increasing the steric hindrance on the reactivity of aldehydes and ketones?
  • A. Increases reactivity
  • B. Decreases reactivity
  • C. No effect
  • D. Reactivity depends on solvent
Q. What is the effect of increasing the surface area of an object on its rate of heat transfer by radiation?
  • A. Decreases
  • B. Increases
  • C. Remains constant
  • D. Becomes zero
Q. What is the effect of increasing the surface area of an object on its rate of heat transfer?
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Depends on the material
Q. What is the effect of increasing the surface charge density on the electric field of a charged plane sheet?
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Becomes zero
Q. What is the effect of increasing the surface roughness on the coefficient of friction?
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Depends on the material
Q. What is the effect of increasing the temperature of a conductor on its resistance? (2019)
  • A. Resistance decreases
  • B. Resistance increases
  • C. Resistance remains constant
  • D. Resistance fluctuates
Q. What is the effect of increasing the temperature of a gas at constant volume?
  • A. Pressure decreases
  • B. Pressure increases
  • C. Volume increases
  • D. Density increases
Q. What is the effect of increasing the temperature of a gas on its pressure, assuming volume is constant?
  • A. Pressure decreases
  • B. Pressure increases
  • C. Pressure remains constant
  • D. Pressure becomes zero
Q. What is the effect of increasing the temperature of a gas on the speed of sound in that gas?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Depends on pressure
Q. What is the effect of increasing the temperature on the average speed of gas molecules?
  • A. Average speed decreases
  • B. Average speed remains constant
  • C. Average speed increases
  • D. Average speed becomes zero
Q. What is the effect of increasing the temperature on the density of most liquids?
  • A. Increases density
  • B. Decreases density
  • C. No effect
  • D. Depends on the liquid
Q. What is the effect of increasing the temperature on the distribution of molecular speeds in a gas?
  • A. The distribution becomes narrower
  • B. The distribution becomes wider
  • C. The distribution remains unchanged
  • D. The average speed decreases
Q. What is the effect of increasing the temperature on the equilibrium constant Kc for an endothermic reaction? (2023)
  • A. Kc decreases
  • B. Kc increases
  • C. Kc remains constant
  • D. Kc becomes zero
Q. What is the effect of increasing the temperature on the equilibrium constant of an exothermic reaction?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Depends on the reaction
Q. What is the effect of increasing the temperature on the refractive index of a medium?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Depends on the medium
Q. What is the effect of increasing the temperature on the resistance of a conductor?
  • A. Resistance decreases
  • B. Resistance increases
  • C. Resistance remains constant
  • D. Resistance fluctuates
Q. What is the effect of increasing the temperature on the resistance of the potentiometer wire?
  • A. Resistance decreases
  • B. Resistance increases
  • C. Resistance remains constant
  • D. Resistance fluctuates
Q. What is the effect of increasing the temperature on the RMS speed of a gas?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Depends on pressure
Q. What is the effect of increasing the temperature on the solubility of most solid solutes in water? (2023)
  • A. Increases solubility
  • B. Decreases solubility
  • C. No effect
  • D. Depends on the solute
Q. What is the effect of increasing the temperature on the speed of gas molecules?
  • A. Speed decreases
  • B. Speed remains constant
  • C. Speed increases
  • D. Speed becomes zero
Q. What is the effect of increasing the tension in a string on the speed of a wave traveling along it?
  • A. Speed decreases
  • B. Speed increases
  • C. Speed remains constant
  • D. Speed becomes zero
Q. What is the effect of increasing the tension in a string on the speed of a wave traveling through it?
  • A. Increases speed
  • B. Decreases speed
  • C. No effect
  • D. Depends on the mass
Q. What is the effect of increasing the transmission power in a communication system?
  • A. Increased range
  • B. Decreased noise
  • C. Higher bandwidth
  • D. Lower distortion
Q. What is the effect of increasing the voltage in a circuit with constant resistance? (2019)
  • A. Current decreases
  • B. Current increases
  • C. Current remains the same
  • D. Resistance increases
Q. What is the effect of increasing the voltage in a circuit? (2020)
  • A. Increases current
  • B. Decreases resistance
  • C. Increases resistance
  • D. Decreases current
Q. What is the effect of increasing the wavelength of incident light on the photoelectric effect?
  • A. More electrons are emitted
  • B. Fewer electrons are emitted
  • C. The kinetic energy of emitted electrons increases
  • D. The work function decreases
Q. What is the effect of increasing the wavelength of incident light on the photoelectric current?
  • A. It increases the current
  • B. It decreases the current
  • C. It has no effect
  • D. It stops the current
Q. What is the effect of increasing the wavelength of light in a diffraction grating experiment?
  • A. Fringe spacing decreases
  • B. Fringe spacing increases
  • C. No effect on fringe spacing
  • D. Fringe intensity increases
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