Photoelectric Effect
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NEET DIGITAL LIBRARY
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357730 The frequency of incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

1 double the earlier value
2 unchanged
3 more than doubled
4 less than doubled
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357731 On a photo sensitive material, when frequency of incident radiation is increased by \(30 \%\), kinetic energy of emitted photoelectrons increases from \(0.4\,eV\) to \(0.9\,eV\). The work function of the surface is

1 \(1\,eV\)
2 \(1.267\,eV\)
3 \(1.4\,eV\)
4 \(1.8\,eV\)
MHTCET - 2017
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357732 Two identical photo cathodes receive light of frequencies \(f_{1}\) and \(f_{2}\). If the velocities of the photoelectrons (of mass \(m\) ) coming out are \({v_1}\) and \({v_2}\), respectively, then

1 \(v_1^2 - v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
2 \(v_1^2 + v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
3 \({v_1} - {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
4 \({v_1} + {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357733 In a photoelectric cell, the wavelength of incident light is changed from \(4000\mathop A\limits^o \) to \(3600\mathop A\limits^o \). The change in stopping potential will be:

1 \(0.14\;V\)
2 \(0.24\;V\)
3 \(0.35\;V\)
4 \(0.44\;V\)
Join With Us for More Updates
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357730 The frequency of incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

1 double the earlier value
2 unchanged
3 more than doubled
4 less than doubled
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357731 On a photo sensitive material, when frequency of incident radiation is increased by \(30 \%\), kinetic energy of emitted photoelectrons increases from \(0.4\,eV\) to \(0.9\,eV\). The work function of the surface is

1 \(1\,eV\)
2 \(1.267\,eV\)
3 \(1.4\,eV\)
4 \(1.8\,eV\)
MHTCET - 2017
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357732 Two identical photo cathodes receive light of frequencies \(f_{1}\) and \(f_{2}\). If the velocities of the photoelectrons (of mass \(m\) ) coming out are \({v_1}\) and \({v_2}\), respectively, then

1 \(v_1^2 - v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
2 \(v_1^2 + v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
3 \({v_1} - {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
4 \({v_1} + {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357733 In a photoelectric cell, the wavelength of incident light is changed from \(4000\mathop A\limits^o \) to \(3600\mathop A\limits^o \). The change in stopping potential will be:

1 \(0.14\;V\)
2 \(0.24\;V\)
3 \(0.35\;V\)
4 \(0.44\;V\)
For More Updates join with Us
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357730 The frequency of incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

1 double the earlier value
2 unchanged
3 more than doubled
4 less than doubled
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357731 On a photo sensitive material, when frequency of incident radiation is increased by \(30 \%\), kinetic energy of emitted photoelectrons increases from \(0.4\,eV\) to \(0.9\,eV\). The work function of the surface is

1 \(1\,eV\)
2 \(1.267\,eV\)
3 \(1.4\,eV\)
4 \(1.8\,eV\)
MHTCET - 2017
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357732 Two identical photo cathodes receive light of frequencies \(f_{1}\) and \(f_{2}\). If the velocities of the photoelectrons (of mass \(m\) ) coming out are \({v_1}\) and \({v_2}\), respectively, then

1 \(v_1^2 - v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
2 \(v_1^2 + v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
3 \({v_1} - {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
4 \({v_1} + {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357733 In a photoelectric cell, the wavelength of incident light is changed from \(4000\mathop A\limits^o \) to \(3600\mathop A\limits^o \). The change in stopping potential will be:

1 \(0.14\;V\)
2 \(0.24\;V\)
3 \(0.35\;V\)
4 \(0.44\;V\)
NEET DIGITAL LIBRARY
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357730 The frequency of incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

1 double the earlier value
2 unchanged
3 more than doubled
4 less than doubled
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357731 On a photo sensitive material, when frequency of incident radiation is increased by \(30 \%\), kinetic energy of emitted photoelectrons increases from \(0.4\,eV\) to \(0.9\,eV\). The work function of the surface is

1 \(1\,eV\)
2 \(1.267\,eV\)
3 \(1.4\,eV\)
4 \(1.8\,eV\)
MHTCET - 2017
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357732 Two identical photo cathodes receive light of frequencies \(f_{1}\) and \(f_{2}\). If the velocities of the photoelectrons (of mass \(m\) ) coming out are \({v_1}\) and \({v_2}\), respectively, then

1 \(v_1^2 - v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
2 \(v_1^2 + v_2^2 = \frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)\)
3 \({v_1} - {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
4 \({v_1} + {v_2} = {\left[ {\frac{{2h}}{m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357733 In a photoelectric cell, the wavelength of incident light is changed from \(4000\mathop A\limits^o \) to \(3600\mathop A\limits^o \). The change in stopping potential will be:

1 \(0.14\;V\)
2 \(0.24\;V\)
3 \(0.35\;V\)
4 \(0.44\;V\)
Join With Us for More Updates