Photoelectric Effect
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357764 Light of wavelength 5000 \( \mathop A^{~~\circ} \) falls on a sensitive plate with photoelectric work function of 1.9 \(eV\). The kinetic energy of the photoelectron emitted will be

1 0.58 \(eV\)
2 2.48 \(eV\)
3 1.24 \(eV\)
4 1.16 \(eV\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357765 Ultraviolet radiations of 6.2 \(eV\) fall on an aluminium surface (work function 4.2 \(eV\) ) The kinetic energy in joules of the fastest electron emitted is approximately

1 \({3.2 \times 10^{-21} {~J}}\)
2 \({3.2 \times 10^{-19} {~J}}\)
3 \({3.2 \times 10^{-17} {~J}}\)
4 \({3.2 \times 10^{-15} {~J}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357766 When a certain metal surface is illuminated with a light of wavelength \(\lambda\), the stopping potential is \(V\), when the same surface is illuminated by light of wavelength \(2 \lambda\), the stoping potential is \(\left(\dfrac{V}{3}\right)\). The threshold wavelength for the surface is

1 \(\dfrac{8 \lambda}{3}\)
2 \(\dfrac{4 \lambda}{3}\)
3 \(4 \lambda\)
4 \(6 \lambda\)
MHTCET - 2019
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357767 The graph of stopping potential \(v_{s}\) against frequency \(v_{0}\) of incident radiation is plotted for two different metals \(P\) and \(Q\) as shown in the graph. \(\phi_{p}\) and \(\phi_{Q}\) are work - functions of \(P\) and \(Q\) respectively, then
supporting img

1 \(\phi_{P}>\phi_{Q}\)
2 \(\phi_{P} < \phi_{Q}\)
3 \(\phi_{P}=\phi_{Q}\)
4 \(v_{0}^{\prime} < v_{0}\)
MHTCET - 2020
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357764 Light of wavelength 5000 \( \mathop A^{~~\circ} \) falls on a sensitive plate with photoelectric work function of 1.9 \(eV\). The kinetic energy of the photoelectron emitted will be

1 0.58 \(eV\)
2 2.48 \(eV\)
3 1.24 \(eV\)
4 1.16 \(eV\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357765 Ultraviolet radiations of 6.2 \(eV\) fall on an aluminium surface (work function 4.2 \(eV\) ) The kinetic energy in joules of the fastest electron emitted is approximately

1 \({3.2 \times 10^{-21} {~J}}\)
2 \({3.2 \times 10^{-19} {~J}}\)
3 \({3.2 \times 10^{-17} {~J}}\)
4 \({3.2 \times 10^{-15} {~J}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357766 When a certain metal surface is illuminated with a light of wavelength \(\lambda\), the stopping potential is \(V\), when the same surface is illuminated by light of wavelength \(2 \lambda\), the stoping potential is \(\left(\dfrac{V}{3}\right)\). The threshold wavelength for the surface is

1 \(\dfrac{8 \lambda}{3}\)
2 \(\dfrac{4 \lambda}{3}\)
3 \(4 \lambda\)
4 \(6 \lambda\)
MHTCET - 2019
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357767 The graph of stopping potential \(v_{s}\) against frequency \(v_{0}\) of incident radiation is plotted for two different metals \(P\) and \(Q\) as shown in the graph. \(\phi_{p}\) and \(\phi_{Q}\) are work - functions of \(P\) and \(Q\) respectively, then
supporting img

1 \(\phi_{P}>\phi_{Q}\)
2 \(\phi_{P} < \phi_{Q}\)
3 \(\phi_{P}=\phi_{Q}\)
4 \(v_{0}^{\prime} < v_{0}\)
MHTCET - 2020
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357764 Light of wavelength 5000 \( \mathop A^{~~\circ} \) falls on a sensitive plate with photoelectric work function of 1.9 \(eV\). The kinetic energy of the photoelectron emitted will be

1 0.58 \(eV\)
2 2.48 \(eV\)
3 1.24 \(eV\)
4 1.16 \(eV\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357765 Ultraviolet radiations of 6.2 \(eV\) fall on an aluminium surface (work function 4.2 \(eV\) ) The kinetic energy in joules of the fastest electron emitted is approximately

1 \({3.2 \times 10^{-21} {~J}}\)
2 \({3.2 \times 10^{-19} {~J}}\)
3 \({3.2 \times 10^{-17} {~J}}\)
4 \({3.2 \times 10^{-15} {~J}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357766 When a certain metal surface is illuminated with a light of wavelength \(\lambda\), the stopping potential is \(V\), when the same surface is illuminated by light of wavelength \(2 \lambda\), the stoping potential is \(\left(\dfrac{V}{3}\right)\). The threshold wavelength for the surface is

1 \(\dfrac{8 \lambda}{3}\)
2 \(\dfrac{4 \lambda}{3}\)
3 \(4 \lambda\)
4 \(6 \lambda\)
MHTCET - 2019
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357767 The graph of stopping potential \(v_{s}\) against frequency \(v_{0}\) of incident radiation is plotted for two different metals \(P\) and \(Q\) as shown in the graph. \(\phi_{p}\) and \(\phi_{Q}\) are work - functions of \(P\) and \(Q\) respectively, then
supporting img

1 \(\phi_{P}>\phi_{Q}\)
2 \(\phi_{P} < \phi_{Q}\)
3 \(\phi_{P}=\phi_{Q}\)
4 \(v_{0}^{\prime} < v_{0}\)
MHTCET - 2020
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357764 Light of wavelength 5000 \( \mathop A^{~~\circ} \) falls on a sensitive plate with photoelectric work function of 1.9 \(eV\). The kinetic energy of the photoelectron emitted will be

1 0.58 \(eV\)
2 2.48 \(eV\)
3 1.24 \(eV\)
4 1.16 \(eV\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357765 Ultraviolet radiations of 6.2 \(eV\) fall on an aluminium surface (work function 4.2 \(eV\) ) The kinetic energy in joules of the fastest electron emitted is approximately

1 \({3.2 \times 10^{-21} {~J}}\)
2 \({3.2 \times 10^{-19} {~J}}\)
3 \({3.2 \times 10^{-17} {~J}}\)
4 \({3.2 \times 10^{-15} {~J}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357766 When a certain metal surface is illuminated with a light of wavelength \(\lambda\), the stopping potential is \(V\), when the same surface is illuminated by light of wavelength \(2 \lambda\), the stoping potential is \(\left(\dfrac{V}{3}\right)\). The threshold wavelength for the surface is

1 \(\dfrac{8 \lambda}{3}\)
2 \(\dfrac{4 \lambda}{3}\)
3 \(4 \lambda\)
4 \(6 \lambda\)
MHTCET - 2019
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357767 The graph of stopping potential \(v_{s}\) against frequency \(v_{0}\) of incident radiation is plotted for two different metals \(P\) and \(Q\) as shown in the graph. \(\phi_{p}\) and \(\phi_{Q}\) are work - functions of \(P\) and \(Q\) respectively, then
supporting img

1 \(\phi_{P}>\phi_{Q}\)
2 \(\phi_{P} < \phi_{Q}\)
3 \(\phi_{P}=\phi_{Q}\)
4 \(v_{0}^{\prime} < v_{0}\)
MHTCET - 2020
For More Updates join with Us