Photoelectric Effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357661 In photoelectric effect, which of the following property of incident light will not affect the stopping potential

1 Frequency
2 Wavelength
3 Energy
4 Intensity
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357662 When a certain metallic surface is illuminated with monochromatic light of wavelength \(\lambda\), the stopping potential for photoelectric current is \(3 V_{0}\). When the same surface is illuminated with a light of wavelength \(2 \lambda\), the stopping potential is \(V_{0}\). The threshold wavelength for this surface for photoelectric effect is

1 \(4 \lambda\)
2 \(6 \lambda\)
3 \(8 \lambda\)
4 \(\dfrac{4}{3} \lambda\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357663 The stopping potential of the photoelectrons, from a photo cell is

1 Directly proportional to intensity of incident light
2 Directly proportional to frequency of incident light
3 Inversely proportional to frequency of incident light
4 Inversely proportional to intensity of incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357664 Light of wavelength \(330\;nm\) falling on piece of metal ejects electrons with sufficient energy which requires voltage \(V_{0}\) to prevent them from reaching a collector. In the same set up, light of wavelength \(220\;nm\), ejects electrons which required twice the voltage \(V_{0}\) to stop them in reaching a collector. The numerical value of voltage \(V_{0}\) is

1 \(\frac{{16}}{{15}}\;V\)
2 \(\frac{{15}}{{16}}\;V\)
3 \(\frac{{15}}{{8}}\;V\)
4 \(\frac{{8}}{{15}}\;V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357665 The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then

1 the photo-current will increase
2 the kinetic energy of the electrons will increase
3 the stopping potential will decrease
4 the threshold wavelength will increase
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357661 In photoelectric effect, which of the following property of incident light will not affect the stopping potential

1 Frequency
2 Wavelength
3 Energy
4 Intensity
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357662 When a certain metallic surface is illuminated with monochromatic light of wavelength \(\lambda\), the stopping potential for photoelectric current is \(3 V_{0}\). When the same surface is illuminated with a light of wavelength \(2 \lambda\), the stopping potential is \(V_{0}\). The threshold wavelength for this surface for photoelectric effect is

1 \(4 \lambda\)
2 \(6 \lambda\)
3 \(8 \lambda\)
4 \(\dfrac{4}{3} \lambda\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357663 The stopping potential of the photoelectrons, from a photo cell is

1 Directly proportional to intensity of incident light
2 Directly proportional to frequency of incident light
3 Inversely proportional to frequency of incident light
4 Inversely proportional to intensity of incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357664 Light of wavelength \(330\;nm\) falling on piece of metal ejects electrons with sufficient energy which requires voltage \(V_{0}\) to prevent them from reaching a collector. In the same set up, light of wavelength \(220\;nm\), ejects electrons which required twice the voltage \(V_{0}\) to stop them in reaching a collector. The numerical value of voltage \(V_{0}\) is

1 \(\frac{{16}}{{15}}\;V\)
2 \(\frac{{15}}{{16}}\;V\)
3 \(\frac{{15}}{{8}}\;V\)
4 \(\frac{{8}}{{15}}\;V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357665 The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then

1 the photo-current will increase
2 the kinetic energy of the electrons will increase
3 the stopping potential will decrease
4 the threshold wavelength will increase
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357661 In photoelectric effect, which of the following property of incident light will not affect the stopping potential

1 Frequency
2 Wavelength
3 Energy
4 Intensity
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357662 When a certain metallic surface is illuminated with monochromatic light of wavelength \(\lambda\), the stopping potential for photoelectric current is \(3 V_{0}\). When the same surface is illuminated with a light of wavelength \(2 \lambda\), the stopping potential is \(V_{0}\). The threshold wavelength for this surface for photoelectric effect is

1 \(4 \lambda\)
2 \(6 \lambda\)
3 \(8 \lambda\)
4 \(\dfrac{4}{3} \lambda\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357663 The stopping potential of the photoelectrons, from a photo cell is

1 Directly proportional to intensity of incident light
2 Directly proportional to frequency of incident light
3 Inversely proportional to frequency of incident light
4 Inversely proportional to intensity of incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357664 Light of wavelength \(330\;nm\) falling on piece of metal ejects electrons with sufficient energy which requires voltage \(V_{0}\) to prevent them from reaching a collector. In the same set up, light of wavelength \(220\;nm\), ejects electrons which required twice the voltage \(V_{0}\) to stop them in reaching a collector. The numerical value of voltage \(V_{0}\) is

1 \(\frac{{16}}{{15}}\;V\)
2 \(\frac{{15}}{{16}}\;V\)
3 \(\frac{{15}}{{8}}\;V\)
4 \(\frac{{8}}{{15}}\;V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357665 The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then

1 the photo-current will increase
2 the kinetic energy of the electrons will increase
3 the stopping potential will decrease
4 the threshold wavelength will increase
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357661 In photoelectric effect, which of the following property of incident light will not affect the stopping potential

1 Frequency
2 Wavelength
3 Energy
4 Intensity
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357662 When a certain metallic surface is illuminated with monochromatic light of wavelength \(\lambda\), the stopping potential for photoelectric current is \(3 V_{0}\). When the same surface is illuminated with a light of wavelength \(2 \lambda\), the stopping potential is \(V_{0}\). The threshold wavelength for this surface for photoelectric effect is

1 \(4 \lambda\)
2 \(6 \lambda\)
3 \(8 \lambda\)
4 \(\dfrac{4}{3} \lambda\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357663 The stopping potential of the photoelectrons, from a photo cell is

1 Directly proportional to intensity of incident light
2 Directly proportional to frequency of incident light
3 Inversely proportional to frequency of incident light
4 Inversely proportional to intensity of incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357664 Light of wavelength \(330\;nm\) falling on piece of metal ejects electrons with sufficient energy which requires voltage \(V_{0}\) to prevent them from reaching a collector. In the same set up, light of wavelength \(220\;nm\), ejects electrons which required twice the voltage \(V_{0}\) to stop them in reaching a collector. The numerical value of voltage \(V_{0}\) is

1 \(\frac{{16}}{{15}}\;V\)
2 \(\frac{{15}}{{16}}\;V\)
3 \(\frac{{15}}{{8}}\;V\)
4 \(\frac{{8}}{{15}}\;V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357665 The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then

1 the photo-current will increase
2 the kinetic energy of the electrons will increase
3 the stopping potential will decrease
4 the threshold wavelength will increase
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357661 In photoelectric effect, which of the following property of incident light will not affect the stopping potential

1 Frequency
2 Wavelength
3 Energy
4 Intensity
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357662 When a certain metallic surface is illuminated with monochromatic light of wavelength \(\lambda\), the stopping potential for photoelectric current is \(3 V_{0}\). When the same surface is illuminated with a light of wavelength \(2 \lambda\), the stopping potential is \(V_{0}\). The threshold wavelength for this surface for photoelectric effect is

1 \(4 \lambda\)
2 \(6 \lambda\)
3 \(8 \lambda\)
4 \(\dfrac{4}{3} \lambda\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357663 The stopping potential of the photoelectrons, from a photo cell is

1 Directly proportional to intensity of incident light
2 Directly proportional to frequency of incident light
3 Inversely proportional to frequency of incident light
4 Inversely proportional to intensity of incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357664 Light of wavelength \(330\;nm\) falling on piece of metal ejects electrons with sufficient energy which requires voltage \(V_{0}\) to prevent them from reaching a collector. In the same set up, light of wavelength \(220\;nm\), ejects electrons which required twice the voltage \(V_{0}\) to stop them in reaching a collector. The numerical value of voltage \(V_{0}\) is

1 \(\frac{{16}}{{15}}\;V\)
2 \(\frac{{15}}{{16}}\;V\)
3 \(\frac{{15}}{{8}}\;V\)
4 \(\frac{{8}}{{15}}\;V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357665 The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then

1 the photo-current will increase
2 the kinetic energy of the electrons will increase
3 the stopping potential will decrease
4 the threshold wavelength will increase