Particle Nature of Electromagnetic Radiation
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CHXI02:STRUCTURE OF ATOM

307381 The photoelectric effect supports quantum nature of light because of following conditions except

1 there is a minimum frequency of light below which no photoelectrons are emitted
2 the maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity
3 even when metal surface is faintly illuminated the photoelectrons leave the surface immediately
4 electric charge of photoelectrons is quantised
CHXI02:STRUCTURE OF ATOM

307382 The minimum energy required to overcome the attractive forces between electron and surface of Ag metal is \({\rm{7}}{\rm{.52 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{J}}\). What will be the maximum K.E. of electron ejected out from Ag which is being exposed to U.V. light of \({\rm{\lambda = 360}}\,\mathop {\rm{A}}\limits^{\rm{o}} \)

1 \({\rm{36}}{\rm{.38 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
2 \({\rm{6}}{\rm{.96 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
3 \({\rm{57}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
4 \({\rm{67}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
CHXI02:STRUCTURE OF ATOM

307383 The work function of a metal is \({\rm{4}}{\rm{.2eV}}\). If radiation of \(\mathrm{2000 \mathrm{~A}}\) falls on the metal, then the kinetic energy of the fastest photoelectron is

1 \({\rm{1}}{\rm{.6}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{\;J}}\)
2 \(\mathrm{16 \times 10^{-10} \mathrm{~J}}\)
3 \(\mathrm{3.2 \times 10^{-19} \mathrm{~J}}\)
4 \(\mathrm{6.4 \times 10^{-10} \mathrm{~J}}\)
AIIMS - 2018
CHXI02:STRUCTURE OF ATOM

307384 Statement A :
Greater the energy possessed by the photon, lesser will be transfer of energy to the electron and the kinetic energy of the ejected electron.
Statement B :
The kinetic energy of the ejected electron is proportional to the frequency of the electromagnetic radiation.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
NEET DIGITAL LIBRARY
CHXI02:STRUCTURE OF ATOM

307381 The photoelectric effect supports quantum nature of light because of following conditions except

1 there is a minimum frequency of light below which no photoelectrons are emitted
2 the maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity
3 even when metal surface is faintly illuminated the photoelectrons leave the surface immediately
4 electric charge of photoelectrons is quantised
CHXI02:STRUCTURE OF ATOM

307382 The minimum energy required to overcome the attractive forces between electron and surface of Ag metal is \({\rm{7}}{\rm{.52 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{J}}\). What will be the maximum K.E. of electron ejected out from Ag which is being exposed to U.V. light of \({\rm{\lambda = 360}}\,\mathop {\rm{A}}\limits^{\rm{o}} \)

1 \({\rm{36}}{\rm{.38 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
2 \({\rm{6}}{\rm{.96 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
3 \({\rm{57}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
4 \({\rm{67}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
CHXI02:STRUCTURE OF ATOM

307383 The work function of a metal is \({\rm{4}}{\rm{.2eV}}\). If radiation of \(\mathrm{2000 \mathrm{~A}}\) falls on the metal, then the kinetic energy of the fastest photoelectron is

1 \({\rm{1}}{\rm{.6}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{\;J}}\)
2 \(\mathrm{16 \times 10^{-10} \mathrm{~J}}\)
3 \(\mathrm{3.2 \times 10^{-19} \mathrm{~J}}\)
4 \(\mathrm{6.4 \times 10^{-10} \mathrm{~J}}\)
AIIMS - 2018
CHXI02:STRUCTURE OF ATOM

307384 Statement A :
Greater the energy possessed by the photon, lesser will be transfer of energy to the electron and the kinetic energy of the ejected electron.
Statement B :
The kinetic energy of the ejected electron is proportional to the frequency of the electromagnetic radiation.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
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CHXI02:STRUCTURE OF ATOM

307381 The photoelectric effect supports quantum nature of light because of following conditions except

1 there is a minimum frequency of light below which no photoelectrons are emitted
2 the maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity
3 even when metal surface is faintly illuminated the photoelectrons leave the surface immediately
4 electric charge of photoelectrons is quantised
CHXI02:STRUCTURE OF ATOM

307382 The minimum energy required to overcome the attractive forces between electron and surface of Ag metal is \({\rm{7}}{\rm{.52 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{J}}\). What will be the maximum K.E. of electron ejected out from Ag which is being exposed to U.V. light of \({\rm{\lambda = 360}}\,\mathop {\rm{A}}\limits^{\rm{o}} \)

1 \({\rm{36}}{\rm{.38 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
2 \({\rm{6}}{\rm{.96 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
3 \({\rm{57}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
4 \({\rm{67}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
CHXI02:STRUCTURE OF ATOM

307383 The work function of a metal is \({\rm{4}}{\rm{.2eV}}\). If radiation of \(\mathrm{2000 \mathrm{~A}}\) falls on the metal, then the kinetic energy of the fastest photoelectron is

1 \({\rm{1}}{\rm{.6}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{\;J}}\)
2 \(\mathrm{16 \times 10^{-10} \mathrm{~J}}\)
3 \(\mathrm{3.2 \times 10^{-19} \mathrm{~J}}\)
4 \(\mathrm{6.4 \times 10^{-10} \mathrm{~J}}\)
AIIMS - 2018
CHXI02:STRUCTURE OF ATOM

307384 Statement A :
Greater the energy possessed by the photon, lesser will be transfer of energy to the electron and the kinetic energy of the ejected electron.
Statement B :
The kinetic energy of the ejected electron is proportional to the frequency of the electromagnetic radiation.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
For More Updates join with Us
CHXI02:STRUCTURE OF ATOM

307381 The photoelectric effect supports quantum nature of light because of following conditions except

1 there is a minimum frequency of light below which no photoelectrons are emitted
2 the maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity
3 even when metal surface is faintly illuminated the photoelectrons leave the surface immediately
4 electric charge of photoelectrons is quantised
CHXI02:STRUCTURE OF ATOM

307382 The minimum energy required to overcome the attractive forces between electron and surface of Ag metal is \({\rm{7}}{\rm{.52 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{J}}\). What will be the maximum K.E. of electron ejected out from Ag which is being exposed to U.V. light of \({\rm{\lambda = 360}}\,\mathop {\rm{A}}\limits^{\rm{o}} \)

1 \({\rm{36}}{\rm{.38 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
2 \({\rm{6}}{\rm{.96 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
3 \({\rm{57}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
4 \({\rm{67}}{\rm{.68 \times 1}}{{\rm{0}}^{{\rm{ - 19}}}}\,{\rm{Joule}}\)
CHXI02:STRUCTURE OF ATOM

307383 The work function of a metal is \({\rm{4}}{\rm{.2eV}}\). If radiation of \(\mathrm{2000 \mathrm{~A}}\) falls on the metal, then the kinetic energy of the fastest photoelectron is

1 \({\rm{1}}{\rm{.6}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 19}}}}{\rm{\;J}}\)
2 \(\mathrm{16 \times 10^{-10} \mathrm{~J}}\)
3 \(\mathrm{3.2 \times 10^{-19} \mathrm{~J}}\)
4 \(\mathrm{6.4 \times 10^{-10} \mathrm{~J}}\)
AIIMS - 2018
CHXI02:STRUCTURE OF ATOM

307384 Statement A :
Greater the energy possessed by the photon, lesser will be transfer of energy to the electron and the kinetic energy of the ejected electron.
Statement B :
The kinetic energy of the ejected electron is proportional to the frequency of the electromagnetic radiation.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
NEET DIGITAL LIBRARY