Photoelectric Effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357666 From the photoelectric effect experiment, following observations are made. Identify which of these are correct.
A. The stopping potential depends only on the work function of the metal.
B. The saturation current increases as the intensity of incident light increases.
C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.
D. Photoelectric effect can be explained using wave theory of light
Choose the correct answer from the options given below

1 A, C, D only
2 B only
3 A, B, D only
4 B, C only
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357667 A radiation of wavelength \(2500 \mathop A^{~~\circ} \) is incident on a metal plate whose work function is \(3.5\,eV\). Then the potential required to stop the fastest photo electrons emitted by the surface is \(\left( {h = 6.63 \times {{10}^{ - 34}}Js\,\,\& \,\,{\mkern 1mu} c = 3 \times {{10}^8}m{\rm{/}}s} \right)\)

1 \(1.86\,V\)
2 \(3.00\,V\)
3 \(1.46\,V\)
4 \(2.15\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357668 If the frequency of light in a photoelectric experiment is doubled, the stopping potential will

1 Be doubled
2 Be halved
3 Become more than double
4 Become less than double
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357669 Using light of wavelength \(6000\) \( \mathop A^{~~\circ} \), stopping potential is obtained to be \(2.4\,volt\) for photoelectric cell. If light of wavelength \(4000\) \( \mathop A^{~~\circ} \) is used, then stopping potential would be

1 \(2.9\,V\)
2 \(1.9\,V\)
3 \(3.43\,V\)
4 \(9.4\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357666 From the photoelectric effect experiment, following observations are made. Identify which of these are correct.
A. The stopping potential depends only on the work function of the metal.
B. The saturation current increases as the intensity of incident light increases.
C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.
D. Photoelectric effect can be explained using wave theory of light
Choose the correct answer from the options given below

1 A, C, D only
2 B only
3 A, B, D only
4 B, C only
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357667 A radiation of wavelength \(2500 \mathop A^{~~\circ} \) is incident on a metal plate whose work function is \(3.5\,eV\). Then the potential required to stop the fastest photo electrons emitted by the surface is \(\left( {h = 6.63 \times {{10}^{ - 34}}Js\,\,\& \,\,{\mkern 1mu} c = 3 \times {{10}^8}m{\rm{/}}s} \right)\)

1 \(1.86\,V\)
2 \(3.00\,V\)
3 \(1.46\,V\)
4 \(2.15\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357668 If the frequency of light in a photoelectric experiment is doubled, the stopping potential will

1 Be doubled
2 Be halved
3 Become more than double
4 Become less than double
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357669 Using light of wavelength \(6000\) \( \mathop A^{~~\circ} \), stopping potential is obtained to be \(2.4\,volt\) for photoelectric cell. If light of wavelength \(4000\) \( \mathop A^{~~\circ} \) is used, then stopping potential would be

1 \(2.9\,V\)
2 \(1.9\,V\)
3 \(3.43\,V\)
4 \(9.4\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357666 From the photoelectric effect experiment, following observations are made. Identify which of these are correct.
A. The stopping potential depends only on the work function of the metal.
B. The saturation current increases as the intensity of incident light increases.
C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.
D. Photoelectric effect can be explained using wave theory of light
Choose the correct answer from the options given below

1 A, C, D only
2 B only
3 A, B, D only
4 B, C only
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357667 A radiation of wavelength \(2500 \mathop A^{~~\circ} \) is incident on a metal plate whose work function is \(3.5\,eV\). Then the potential required to stop the fastest photo electrons emitted by the surface is \(\left( {h = 6.63 \times {{10}^{ - 34}}Js\,\,\& \,\,{\mkern 1mu} c = 3 \times {{10}^8}m{\rm{/}}s} \right)\)

1 \(1.86\,V\)
2 \(3.00\,V\)
3 \(1.46\,V\)
4 \(2.15\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357668 If the frequency of light in a photoelectric experiment is doubled, the stopping potential will

1 Be doubled
2 Be halved
3 Become more than double
4 Become less than double
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357669 Using light of wavelength \(6000\) \( \mathop A^{~~\circ} \), stopping potential is obtained to be \(2.4\,volt\) for photoelectric cell. If light of wavelength \(4000\) \( \mathop A^{~~\circ} \) is used, then stopping potential would be

1 \(2.9\,V\)
2 \(1.9\,V\)
3 \(3.43\,V\)
4 \(9.4\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357666 From the photoelectric effect experiment, following observations are made. Identify which of these are correct.
A. The stopping potential depends only on the work function of the metal.
B. The saturation current increases as the intensity of incident light increases.
C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.
D. Photoelectric effect can be explained using wave theory of light
Choose the correct answer from the options given below

1 A, C, D only
2 B only
3 A, B, D only
4 B, C only
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357667 A radiation of wavelength \(2500 \mathop A^{~~\circ} \) is incident on a metal plate whose work function is \(3.5\,eV\). Then the potential required to stop the fastest photo electrons emitted by the surface is \(\left( {h = 6.63 \times {{10}^{ - 34}}Js\,\,\& \,\,{\mkern 1mu} c = 3 \times {{10}^8}m{\rm{/}}s} \right)\)

1 \(1.86\,V\)
2 \(3.00\,V\)
3 \(1.46\,V\)
4 \(2.15\,V\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357668 If the frequency of light in a photoelectric experiment is doubled, the stopping potential will

1 Be doubled
2 Be halved
3 Become more than double
4 Become less than double
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357669 Using light of wavelength \(6000\) \( \mathop A^{~~\circ} \), stopping potential is obtained to be \(2.4\,volt\) for photoelectric cell. If light of wavelength \(4000\) \( \mathop A^{~~\circ} \) is used, then stopping potential would be

1 \(2.9\,V\)
2 \(1.9\,V\)
3 \(3.43\,V\)
4 \(9.4\,V\)