The photoelectric effect is the phenomenon where:
a) Light is emitted from a material
b) Light changes its direction when passing through a medium
c) Electrons are emitted from a material when exposed to light
d) Light changes its color when passing through a medium
Answer: c) Electrons are emitted from a material when exposed to light
The photoelectric effect provided evidence for the existence of:
a) Photons
b) Electrons
c) Protons
d) Neutrons
Answer: a) Photons
The energy of a photon is directly proportional to its:
a) Wavelength
b) Frequency
c) Speed
d) Amplitude
Answer: b) Frequency
In the photoelectric effect, increasing the intensity of light while keeping the frequency constant will:
a) Increase the number of emitted electrons
b) Decrease the number of emitted electrons
c) Not affect the number of emitted electrons
d) Cause the emission of light instead of electrons
Answer: c) Not affect the number of emitted electrons
The work function of a material is defined as:
a) The energy of a photon
b) The frequency of light
c) The minimum energy required to remove an electron from the material
d) The speed of light
Answer: c) The minimum energy required to remove an electron from the material
The photoelectric current is directly proportional to the:
a) Wavelength of light
b) Intensity of light
c) Speed of light
d) Work function of the material
Answer: b) Intensity of light
The photoelectric effect supports the particle-like nature of light because:
a) Electrons are emitted as discrete particles
b) Light shows interference patterns
c) Light exhibits diffraction
d) Light changes its direction when passing through a medium
Answer: a) Electrons are emitted as discrete particles
The threshold frequency in the photoelectric effect is the frequency:
a) Below which no electrons are emitted
b) Above which no electrons are emitted
c) At which the intensity of light is maximum
d) At which the wavelength of light is maximum
Answer: a) Below which no electrons are emitted
The stopping potential in the photoelectric effect depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: d) Work function of the material
According to the photoelectric effect, the kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect cannot be explained by:
a) Wave theory of light
b) Particle theory of light
c) Quantum theory of light
d) Classical electromagnetic theory
Answer: a) Wave theory of light
The photoelectric effect is an example of:
a) Elastic collision
b) Inelastic collision
c) Transverse wave
d) Particle-wave duality
Answer: d) Particle-wave duality
The photoelectric effect is used in:
a) Solar panels
b) X-ray machines
c) Electron microscopes
d) All of the above
Answer: d) All of the above
The frequency of light required to eject electrons from a metal depends on the metal’s:
a) Mass
b) Charge
c) Atomic number
d) Work function
Answer: d) Work function
The energy of a photon is directly proportional to its:
a) Velocity
b) Wavelength
c) Frequency
d) Amplitude
Answer: c) Frequency
The photoelectric effect provided experimental evidence for the quantization of:
a) Energy
b) Momentum
c) Charge
d) Mass
Answer: a) Energy
The photoelectric effect is explained by:
a) Planck’s quantum theory
b) Einstein’s theory of relativity
c) Newton’s laws of motion
d) Maxwell’s electromagnetic theory
Answer: a) Planck’s quantum theory
The photoelectric effect occurs when photons transfer their:
a) Energy to electrons
b) Charge to electrons
c) Momentum to electrons
d) Mass to electrons
Answer: a) Energy to electrons
The intensity of light is related to the:
a) Amplitude of light waves
b) Wavelength of light waves
c) Frequency of light waves
d) Speed of light waves
Answer: a) Amplitude of light waves
The photoelectric effect supports the concept of the:
a) Wave-particle duality of light
b) Wave interference of light
c) Wave diffraction of light
d) Wave reflection of light
Answer: a) Wave-particle duality of light
In the photoelectric effect, the maximum kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect is the basis for the operation of:
a) Lasers
b) Photocells
c) Telescopes
d) Magnetic resonance imaging (MRI) machines
Answer: b) Photocells
Increasing the intensity of light in the photoelectric effect will:
a) Increase the number of emitted electrons
b) Decrease the number of emitted electrons
c) Not affect the number of emitted electrons
d) Cause the emission of light instead of electrons
Answer: c) Not affect the number of emitted electrons
The threshold frequency in the photoelectric effect is the frequency:
a) Below which no electrons are emitted
b) Above which no electrons are emitted
c) At which the intensity of light is maximum
d) At which the wavelength of light is maximum
Answer: a) Below which no electrons are emitted
The stopping potential in the photoelectric effect depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: d) Work function of the material
According to the photoelectric effect, the kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect cannot be explained by:
a) Wave theory of light
b) Particle theory of light
c) Quantum theory of light
d) Classical electromagnetic theory
Answer: a) Wave theory of light
The photoelectric effect is an example of:
a) Elastic collision
b) Inelastic collision
c) Transverse wave
d) Particle-wave duality
Answer: d) Particle-wave duality
The photoelectric effect is used in:
a) Solar panels
b) X-ray machines
c) Electron microscopes
d) All of the above
Answer: d) All of the above
The frequency of light required to eject electrons from a metal depends on the metal’s:
a) Mass
b) Charge
c) Atomic number
d) Work function
Answer: d) Work function
The energy of a photon is directly proportional to its:
a) Velocity
b) Wavelength
c) Frequency
d) Amplitude
Answer: c) Frequency
The photoelectric effect provided experimental evidence for the quantization of:
a) Energy
b) Momentum
c) Charge
d) Mass
Answer: a) Energy
The photoelectric effect is explained by:
a) Planck’s quantum theory
b) Einstein’s theory of relativity
c) Newton’s laws of motion
d) Maxwell’s electromagnetic theory
Answer: a) Planck’s quantum theory
The photoelectric effect occurs when photons transfer their:
a) Energy to electrons
b) Charge to electrons
c) Momentum to electrons
d) Mass to electrons
Answer: a) Energy to electrons
The intensity of light is related to the:
a) Amplitude of light waves
b) Wavelength of light waves
c) Frequency of light waves
d) Speed of light waves
Answer: a) Amplitude of light waves
The photoelectric effect supports the concept of the:
a) Wave-particle duality of light
b) Wave interference of light
c) Wave diffraction of light
d) Wave reflection of light
Answer: a) Wave-particle duality of light
In the photoelectric effect, the maximum kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect is the basis for the operation of:
a) Lasers
b) Photocells
c) Telescopes
d) Magnetic resonance imaging (MRI) machines
Answer: b) Photocells
Increasing the intensity of light in the photoelectric effect will:
a) Increase the number of emitted electrons
b) Decrease the number of emitted electrons
c) Not affect the number of emitted electrons
d) Cause the emission of light instead of electrons
Answer: c) Not affect the number of emitted electrons
The threshold frequency in the photoelectric effect is the frequency:
a) Below which no electrons are emitted
b) Above which no electrons are emitted
c) At which the intensity of light is maximum
d) At which the wavelength of light is maximum
Answer: a) Below which no electrons are emitted
The stopping potential in the photoelectric effect depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: d) Work function of the material
According to the photoelectric effect, the kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect cannot be explained by:
a) Wave theory of light
b) Particle theory of light
c) Quantum theory of light
d) Classical electromagnetic theory
Answer: a) Wave theory of light
The photoelectric effect is an example of:
a) Elastic collision
b) Inelastic collision
c) Transverse wave
d) Particle-wave duality
Answer: d) Particle-wave duality
The photoelectric effect is used in:
a) Solar panels
b) X-ray machines
c) Electron microscopes
d) All of the above
Answer: d) All of the above
The frequency of light required to eject electrons from a metal depends on the metal’s:
a) Mass
b) Charge
c) Atomic number
d) Work function
Answer: d) Work function
The energy of a photon is directly proportional to its:
a) Velocity
b) Wavelength
c) Frequency
d) Amplitude
Answer: c) Frequency
The photoelectric effect provided experimental evidence for the quantization of:
a) Energy
b) Momentum
c) Charge
d) Mass
Answer: a) Energy
The photoelectric effect is explained by:
a) Planck’s quantum theory
b) Einstein’s theory of relativity
c) Newton’s laws of motion
d) Maxwell’s electromagnetic theory
Answer: a) Planck’s quantum theory
The photoelectric effect occurs when photons transfer their:
a) Energy to electrons
b) Charge to electrons
c) Momentum to electrons
d) Mass to electrons
Answer: a) Energy to electrons
The intensity of light is related to the:
a) Amplitude of light waves
b) Wavelength of light waves
c) Frequency of light waves
d) Speed of light waves
Answer: a) Amplitude of light waves
The photoelectric effect supports the concept of the:
a) Wave-particle duality of light
b) Wave interference of light
c) Wave diffraction of light
d) Wave reflection of light
Answer: a) Wave-particle duality of light
In the photoelectric effect, the maximum kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect is the basis for the operation of:
a) Lasers
b) Photocells
c) Telescopes
d) Magnetic resonance imaging (MRI) machines
Answer: b) Photocells
Increasing the intensity of light in the photoelectric effect will:
a) Increase the number of emitted electrons
b) Decrease the number of emitted electrons
c) Not affect the number of emitted electrons
d) Cause the emission of light instead of electrons
Answer: c) Not affect the number of emitted electrons
The threshold frequency in the photoelectric effect is the frequency:
a) Below which no electrons are emitted
b) Above which no electrons are emitted
c) At which the intensity of light is maximum
d) At which the wavelength of light is maximum
Answer: a) Below which no electrons are emitted
The stopping potential in the photoelectric effect depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: d) Work function of the material
According to the photoelectric effect, the kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect cannot be explained by:
a) Wave theory of light
b) Particle theory of light
c) Quantum theory of light
d) Classical electromagnetic theory
Answer: a) Wave theory of light
The photoelectric effect is an example of:
a) Elastic collision
b) Inelastic collision
c) Transverse wave
d) Particle-wave duality
Answer: d) Particle-wave duality
The photoelectric effect is used in:
a) Solar panels
b) X-ray machines
c) Electron microscopes
d) All of the above
Answer: d) All of the above
The frequency of light required to eject electrons from a metal depends on the metal’s:
a) Mass
b) Charge
c) Atomic number
d) Work function
Answer: d) Work function
The energy of a photon is directly proportional to its:
a) Velocity
b) Wavelength
c) Frequency
d) Amplitude
Answer: c) Frequency
The photoelectric effect provided experimental evidence for the quantization of:
a) Energy
b) Momentum
c) Charge
d) Mass
Answer: a) Energy
The photoelectric effect is explained by:
a) Planck’s quantum theory
b) Einstein’s theory of relativity
c) Newton’s laws of motion
d) Maxwell’s electromagnetic theory
Answer: a) Planck’s quantum theory
The photoelectric effect occurs when photons transfer their:
a) Energy to electrons
b) Charge to electrons
c) Momentum to electrons
d) Mass to electrons
Answer: a) Energy to electrons
The intensity of light is related to the:
a) Amplitude of light waves
b) Wavelength of light waves
c) Frequency of light waves
d) Speed of light waves
Answer: a) Amplitude of light waves
The photoelectric effect supports the concept of the:
a) Wave-particle duality of light
b) Wave interference of light
c) Wave diffraction of light
d) Wave reflection of light
Answer: a) Wave-particle duality of light
In the photoelectric effect, the maximum kinetic energy of emitted electrons depends on the:
a) Intensity of light
b) Frequency of light
c) Wavelength of light
d) Work function of the material
Answer: b) Frequency of light
The photoelectric effect is the basis for the operation of:
a) Lasers
b) Photocells
c) Telescopes
d) Magnetic resonance imaging (MRI) machines
Answer: b) Photocells
