Photoelectric Effect
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357781 The photoelectric work function for photo metal is \(2.4\,eV\). Among the four wavelengths, the wavelength of light for which photo emission does not take place is

1 \(200\,nm\)
2 \(300\,nm\)
3 \(700\,nm\)
4 \(400\,nm\)
KCET - 2024
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357782 The maximum kinetic energy of emitted photoelectrons depends on

1 Intensity of incident radiation
2 Frequency of incident radiation
3 Speed of incident radiation
4 Number of photons in the incident rotation
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357783 A photon of wavelength \(4400\) \( \mathop A^{~~\circ} \) is passing through vaccum. The effective mass and momentum of the photon are respectively

1 \({5 \times 10^{-36} {~kg}, 1.5 \times 10^{-27} {~kg} {~ms}^{-1}}\)
2 \({5 \times 10^{-35} {~kg}, 1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
3 zero, \({1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
4 \({5 \times 10^{-36} {~kg}, 1.67 \times 10^{-43} {~kg} {~ms}^{-1}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357784 The work functions of Caesium \((C s)\), Potassium \((K)\) and Sodium \((Na)\) are \(2.14\,eV,2.30\,eV\,{\rm{and }}2.75\,eV\) respectively. If incident electromagnetic radiation has an incident energy of \(2.20\,eV\), which of these photosensitive surfaces may emit photoelectrons?

1 Both \(Na\) and \(K\)
2 \(K\) only
3 \(Na\) only
4 \(Cs\) only
NEET - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357785 Statement A :
In photon-particle collision the total energy and total momentum are conserved.
Statement B :
The number of photons are conserved in a collision.

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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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357781 The photoelectric work function for photo metal is \(2.4\,eV\). Among the four wavelengths, the wavelength of light for which photo emission does not take place is

1 \(200\,nm\)
2 \(300\,nm\)
3 \(700\,nm\)
4 \(400\,nm\)
KCET - 2024
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357782 The maximum kinetic energy of emitted photoelectrons depends on

1 Intensity of incident radiation
2 Frequency of incident radiation
3 Speed of incident radiation
4 Number of photons in the incident rotation
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357783 A photon of wavelength \(4400\) \( \mathop A^{~~\circ} \) is passing through vaccum. The effective mass and momentum of the photon are respectively

1 \({5 \times 10^{-36} {~kg}, 1.5 \times 10^{-27} {~kg} {~ms}^{-1}}\)
2 \({5 \times 10^{-35} {~kg}, 1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
3 zero, \({1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
4 \({5 \times 10^{-36} {~kg}, 1.67 \times 10^{-43} {~kg} {~ms}^{-1}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357784 The work functions of Caesium \((C s)\), Potassium \((K)\) and Sodium \((Na)\) are \(2.14\,eV,2.30\,eV\,{\rm{and }}2.75\,eV\) respectively. If incident electromagnetic radiation has an incident energy of \(2.20\,eV\), which of these photosensitive surfaces may emit photoelectrons?

1 Both \(Na\) and \(K\)
2 \(K\) only
3 \(Na\) only
4 \(Cs\) only
NEET - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357785 Statement A :
In photon-particle collision the total energy and total momentum are conserved.
Statement B :
The number of photons are conserved in a collision.

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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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357781 The photoelectric work function for photo metal is \(2.4\,eV\). Among the four wavelengths, the wavelength of light for which photo emission does not take place is

1 \(200\,nm\)
2 \(300\,nm\)
3 \(700\,nm\)
4 \(400\,nm\)
KCET - 2024
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357782 The maximum kinetic energy of emitted photoelectrons depends on

1 Intensity of incident radiation
2 Frequency of incident radiation
3 Speed of incident radiation
4 Number of photons in the incident rotation
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357783 A photon of wavelength \(4400\) \( \mathop A^{~~\circ} \) is passing through vaccum. The effective mass and momentum of the photon are respectively

1 \({5 \times 10^{-36} {~kg}, 1.5 \times 10^{-27} {~kg} {~ms}^{-1}}\)
2 \({5 \times 10^{-35} {~kg}, 1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
3 zero, \({1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
4 \({5 \times 10^{-36} {~kg}, 1.67 \times 10^{-43} {~kg} {~ms}^{-1}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357784 The work functions of Caesium \((C s)\), Potassium \((K)\) and Sodium \((Na)\) are \(2.14\,eV,2.30\,eV\,{\rm{and }}2.75\,eV\) respectively. If incident electromagnetic radiation has an incident energy of \(2.20\,eV\), which of these photosensitive surfaces may emit photoelectrons?

1 Both \(Na\) and \(K\)
2 \(K\) only
3 \(Na\) only
4 \(Cs\) only
NEET - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357785 Statement A :
In photon-particle collision the total energy and total momentum are conserved.
Statement B :
The number of photons are conserved in a collision.

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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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357781 The photoelectric work function for photo metal is \(2.4\,eV\). Among the four wavelengths, the wavelength of light for which photo emission does not take place is

1 \(200\,nm\)
2 \(300\,nm\)
3 \(700\,nm\)
4 \(400\,nm\)
KCET - 2024
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357782 The maximum kinetic energy of emitted photoelectrons depends on

1 Intensity of incident radiation
2 Frequency of incident radiation
3 Speed of incident radiation
4 Number of photons in the incident rotation
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357783 A photon of wavelength \(4400\) \( \mathop A^{~~\circ} \) is passing through vaccum. The effective mass and momentum of the photon are respectively

1 \({5 \times 10^{-36} {~kg}, 1.5 \times 10^{-27} {~kg} {~ms}^{-1}}\)
2 \({5 \times 10^{-35} {~kg}, 1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
3 zero, \({1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
4 \({5 \times 10^{-36} {~kg}, 1.67 \times 10^{-43} {~kg} {~ms}^{-1}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357784 The work functions of Caesium \((C s)\), Potassium \((K)\) and Sodium \((Na)\) are \(2.14\,eV,2.30\,eV\,{\rm{and }}2.75\,eV\) respectively. If incident electromagnetic radiation has an incident energy of \(2.20\,eV\), which of these photosensitive surfaces may emit photoelectrons?

1 Both \(Na\) and \(K\)
2 \(K\) only
3 \(Na\) only
4 \(Cs\) only
NEET - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357785 Statement A :
In photon-particle collision the total energy and total momentum are conserved.
Statement B :
The number of photons are conserved in a collision.

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.
Join With Us for More Updates
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357781 The photoelectric work function for photo metal is \(2.4\,eV\). Among the four wavelengths, the wavelength of light for which photo emission does not take place is

1 \(200\,nm\)
2 \(300\,nm\)
3 \(700\,nm\)
4 \(400\,nm\)
KCET - 2024
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357782 The maximum kinetic energy of emitted photoelectrons depends on

1 Intensity of incident radiation
2 Frequency of incident radiation
3 Speed of incident radiation
4 Number of photons in the incident rotation
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357783 A photon of wavelength \(4400\) \( \mathop A^{~~\circ} \) is passing through vaccum. The effective mass and momentum of the photon are respectively

1 \({5 \times 10^{-36} {~kg}, 1.5 \times 10^{-27} {~kg} {~ms}^{-1}}\)
2 \({5 \times 10^{-35} {~kg}, 1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
3 zero, \({1.5 \times 10^{-26} {~kg} {~ms}^{-1}}\)
4 \({5 \times 10^{-36} {~kg}, 1.67 \times 10^{-43} {~kg} {~ms}^{-1}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357784 The work functions of Caesium \((C s)\), Potassium \((K)\) and Sodium \((Na)\) are \(2.14\,eV,2.30\,eV\,{\rm{and }}2.75\,eV\) respectively. If incident electromagnetic radiation has an incident energy of \(2.20\,eV\), which of these photosensitive surfaces may emit photoelectrons?

1 Both \(Na\) and \(K\)
2 \(K\) only
3 \(Na\) only
4 \(Cs\) only
NEET - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357785 Statement A :
In photon-particle collision the total energy and total momentum are conserved.
Statement B :
The number of photons are conserved in a collision.

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.