Photoelectric Effect
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357824 Which of the following statement is wrong?

1 Einstein explained photoelectric effect with the help of quantum theory
2 Millikan determined the value of planck's constant depending upon the property of photoelectric effect.
3 The maximum \(K.E\). of the photo electrons depends upon the intensity of incident radiation.
4 As the frequency of incident photon increases the corresponding stopping potential also increases.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357825 A photo sensitive surface is receiving light of wavelength \(5000 \mathop A^{~~\circ} \) at the rate of \({10^{ - 7}}J{s^{ - 1}}\). The number of photoelectrons ejected per second is (given each photon can eject one electron)

1 \(2.5 \times 10^{12}\)
2 \(2.5 \times 10^{11}\)
3 \(2.5 \times 10^{10}\)
4 \(2.5 \times 10^{9}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357826 The following process is known as \(h v \rightarrow e^{+}+e^{-}\)

1 pair production
2 photoelectric effect
3 Compton effect
4 Zeeman effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357827 Ultraviolet light of wavelength \(300\;nm\) and intensity \(1.0\;W{\rm{/}}{m^2}\) falls on the surface of a photoelectric material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of \(1.0\;c{m^2}\) of the surface is nearly

1 \(9.61 \times 10^{14}\) per second
2 \(4.12 \times 10^{13}\) per second
3 \(1.51 \times 10^{12}\) per second
4 \(2.13 \times 10^{11}\) per second
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357824 Which of the following statement is wrong?

1 Einstein explained photoelectric effect with the help of quantum theory
2 Millikan determined the value of planck's constant depending upon the property of photoelectric effect.
3 The maximum \(K.E\). of the photo electrons depends upon the intensity of incident radiation.
4 As the frequency of incident photon increases the corresponding stopping potential also increases.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357825 A photo sensitive surface is receiving light of wavelength \(5000 \mathop A^{~~\circ} \) at the rate of \({10^{ - 7}}J{s^{ - 1}}\). The number of photoelectrons ejected per second is (given each photon can eject one electron)

1 \(2.5 \times 10^{12}\)
2 \(2.5 \times 10^{11}\)
3 \(2.5 \times 10^{10}\)
4 \(2.5 \times 10^{9}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357826 The following process is known as \(h v \rightarrow e^{+}+e^{-}\)

1 pair production
2 photoelectric effect
3 Compton effect
4 Zeeman effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357827 Ultraviolet light of wavelength \(300\;nm\) and intensity \(1.0\;W{\rm{/}}{m^2}\) falls on the surface of a photoelectric material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of \(1.0\;c{m^2}\) of the surface is nearly

1 \(9.61 \times 10^{14}\) per second
2 \(4.12 \times 10^{13}\) per second
3 \(1.51 \times 10^{12}\) per second
4 \(2.13 \times 10^{11}\) per second
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357824 Which of the following statement is wrong?

1 Einstein explained photoelectric effect with the help of quantum theory
2 Millikan determined the value of planck's constant depending upon the property of photoelectric effect.
3 The maximum \(K.E\). of the photo electrons depends upon the intensity of incident radiation.
4 As the frequency of incident photon increases the corresponding stopping potential also increases.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357825 A photo sensitive surface is receiving light of wavelength \(5000 \mathop A^{~~\circ} \) at the rate of \({10^{ - 7}}J{s^{ - 1}}\). The number of photoelectrons ejected per second is (given each photon can eject one electron)

1 \(2.5 \times 10^{12}\)
2 \(2.5 \times 10^{11}\)
3 \(2.5 \times 10^{10}\)
4 \(2.5 \times 10^{9}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357826 The following process is known as \(h v \rightarrow e^{+}+e^{-}\)

1 pair production
2 photoelectric effect
3 Compton effect
4 Zeeman effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357827 Ultraviolet light of wavelength \(300\;nm\) and intensity \(1.0\;W{\rm{/}}{m^2}\) falls on the surface of a photoelectric material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of \(1.0\;c{m^2}\) of the surface is nearly

1 \(9.61 \times 10^{14}\) per second
2 \(4.12 \times 10^{13}\) per second
3 \(1.51 \times 10^{12}\) per second
4 \(2.13 \times 10^{11}\) per second
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357824 Which of the following statement is wrong?

1 Einstein explained photoelectric effect with the help of quantum theory
2 Millikan determined the value of planck's constant depending upon the property of photoelectric effect.
3 The maximum \(K.E\). of the photo electrons depends upon the intensity of incident radiation.
4 As the frequency of incident photon increases the corresponding stopping potential also increases.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357825 A photo sensitive surface is receiving light of wavelength \(5000 \mathop A^{~~\circ} \) at the rate of \({10^{ - 7}}J{s^{ - 1}}\). The number of photoelectrons ejected per second is (given each photon can eject one electron)

1 \(2.5 \times 10^{12}\)
2 \(2.5 \times 10^{11}\)
3 \(2.5 \times 10^{10}\)
4 \(2.5 \times 10^{9}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357826 The following process is known as \(h v \rightarrow e^{+}+e^{-}\)

1 pair production
2 photoelectric effect
3 Compton effect
4 Zeeman effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357827 Ultraviolet light of wavelength \(300\;nm\) and intensity \(1.0\;W{\rm{/}}{m^2}\) falls on the surface of a photoelectric material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of \(1.0\;c{m^2}\) of the surface is nearly

1 \(9.61 \times 10^{14}\) per second
2 \(4.12 \times 10^{13}\) per second
3 \(1.51 \times 10^{12}\) per second
4 \(2.13 \times 10^{11}\) per second
For More Updates join with Us
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