Photoelectric Effect
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357743 Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited state to the ground state irradiates a photosensitive material. The stopping potential is measured to be \(3.57\;V\). The threshold frequency of the material is

1 \(1.6 \times {10^{15}}\;Hz\)
2 \(4 \times {10^{15}}\;Hz\)
3 \(2.5 \times {10^{15}}\;Hz\)
4 \(5 \times {10^{15}}\;Hz\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357744 Light of two different frequencies whose photons have energies \(1\,eV\) and \(2.5\,eV\) respectively, successively illuminate a metallic surface whose work function is \(0.5\,eV\). Ratio of maximum speeds of emitted electrons will be

1 \(1: 4\)
2 \(1: 1\)
3 \(1: 5\)
4 \(1: 2\)
KCET - 2015
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357745 Light of frequency \(v\) falls on material of threshold frequency \(v_{0}\). Maximum kinetic energy of emitted electron is proportional to

1 \(v-v_{0}\)
2 \(v\)
3 \(\sqrt{v-v_{0}}\)
4 \(v_{0}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357746 The maximum velocity of electrons emitted from a metal surface is \(v\), when frequency of light falling on it is \(f\). The maximum velocity when frequency becomes \(4 f\) is

1 \( < 2 v\)
2 \(2 v\)
3 \(>2 v\)
4 between \(2 v\) and \(4 v\)
For More Updates join with Us
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357743 Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited state to the ground state irradiates a photosensitive material. The stopping potential is measured to be \(3.57\;V\). The threshold frequency of the material is

1 \(1.6 \times {10^{15}}\;Hz\)
2 \(4 \times {10^{15}}\;Hz\)
3 \(2.5 \times {10^{15}}\;Hz\)
4 \(5 \times {10^{15}}\;Hz\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357744 Light of two different frequencies whose photons have energies \(1\,eV\) and \(2.5\,eV\) respectively, successively illuminate a metallic surface whose work function is \(0.5\,eV\). Ratio of maximum speeds of emitted electrons will be

1 \(1: 4\)
2 \(1: 1\)
3 \(1: 5\)
4 \(1: 2\)
KCET - 2015
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357745 Light of frequency \(v\) falls on material of threshold frequency \(v_{0}\). Maximum kinetic energy of emitted electron is proportional to

1 \(v-v_{0}\)
2 \(v\)
3 \(\sqrt{v-v_{0}}\)
4 \(v_{0}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357746 The maximum velocity of electrons emitted from a metal surface is \(v\), when frequency of light falling on it is \(f\). The maximum velocity when frequency becomes \(4 f\) is

1 \( < 2 v\)
2 \(2 v\)
3 \(>2 v\)
4 between \(2 v\) and \(4 v\)
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357743 Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited state to the ground state irradiates a photosensitive material. The stopping potential is measured to be \(3.57\;V\). The threshold frequency of the material is

1 \(1.6 \times {10^{15}}\;Hz\)
2 \(4 \times {10^{15}}\;Hz\)
3 \(2.5 \times {10^{15}}\;Hz\)
4 \(5 \times {10^{15}}\;Hz\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357744 Light of two different frequencies whose photons have energies \(1\,eV\) and \(2.5\,eV\) respectively, successively illuminate a metallic surface whose work function is \(0.5\,eV\). Ratio of maximum speeds of emitted electrons will be

1 \(1: 4\)
2 \(1: 1\)
3 \(1: 5\)
4 \(1: 2\)
KCET - 2015
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357745 Light of frequency \(v\) falls on material of threshold frequency \(v_{0}\). Maximum kinetic energy of emitted electron is proportional to

1 \(v-v_{0}\)
2 \(v\)
3 \(\sqrt{v-v_{0}}\)
4 \(v_{0}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357746 The maximum velocity of electrons emitted from a metal surface is \(v\), when frequency of light falling on it is \(f\). The maximum velocity when frequency becomes \(4 f\) is

1 \( < 2 v\)
2 \(2 v\)
3 \(>2 v\)
4 between \(2 v\) and \(4 v\)
Join With Us for More Updates
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357743 Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited state to the ground state irradiates a photosensitive material. The stopping potential is measured to be \(3.57\;V\). The threshold frequency of the material is

1 \(1.6 \times {10^{15}}\;Hz\)
2 \(4 \times {10^{15}}\;Hz\)
3 \(2.5 \times {10^{15}}\;Hz\)
4 \(5 \times {10^{15}}\;Hz\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357744 Light of two different frequencies whose photons have energies \(1\,eV\) and \(2.5\,eV\) respectively, successively illuminate a metallic surface whose work function is \(0.5\,eV\). Ratio of maximum speeds of emitted electrons will be

1 \(1: 4\)
2 \(1: 1\)
3 \(1: 5\)
4 \(1: 2\)
KCET - 2015
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357745 Light of frequency \(v\) falls on material of threshold frequency \(v_{0}\). Maximum kinetic energy of emitted electron is proportional to

1 \(v-v_{0}\)
2 \(v\)
3 \(\sqrt{v-v_{0}}\)
4 \(v_{0}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357746 The maximum velocity of electrons emitted from a metal surface is \(v\), when frequency of light falling on it is \(f\). The maximum velocity when frequency becomes \(4 f\) is

1 \( < 2 v\)
2 \(2 v\)
3 \(>2 v\)
4 between \(2 v\) and \(4 v\)
For More Updates join with Us