Einstein s Photo Electric Equation and Energy Quantity Of Radiation (KE, Vmax, Work Function)
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Dual nature of radiation and Matter

142330 Photoelectrons are emitted from a metal surface when photons of energy $3.1 \mathrm{eV}$ or more impinge on it. In an experiment with this metal using a monochromatic radiation the stopping potential was found to be $2.5 \mathrm{~V}$. The energy of the photons used in the experiment is

1 $7.8 \mathrm{eV}$
2 $6.2 \mathrm{eV}$
3 $5.6 \mathrm{eV}$
4 $4.2 \mathrm{eV}$
EAMCET-1992
Dual nature of radiation and Matter

142171 In a photo electric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photo electric current.

1 Is doubled
2 Becomes four times
3 Remains constant
4 Is halved
Karnataka CET-2022
Dual nature of radiation and Matter

142196 When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons

1 decreases
2 increases
3 first decreases and then increases
4 remains same
MHT-CET 2020
Dual nature of radiation and Matter

142216 A metal surface of work function $3 \mathrm{eV}$ is illuminated by photons of energy $2 \mathrm{eV}$. The kinetic energy of emitted photo-electrons will be

1 $1 \mathrm{eV}$
2 $2 \mathrm{eV}$
3 $3 \mathrm{eV}$
4 0
UPSEE 2019
Dual nature of radiation and Matter

142268 A source of light is placed at a distance of 50 cm from an photocell and the stopping potential is found to be $V_{0}$. If the distance between the light source and photo cell is made $25 \mathrm{~cm}$, the new stopping potential will be

1 $\mathrm{V}_{0} / 2$
2 $\mathrm{V}_{0}$
3 $4 \mathrm{~V}_{0}$
4 $2 \mathrm{~V}_{0}$
COMEDK 2013
Join With Us for More Updates
Dual nature of radiation and Matter

142330 Photoelectrons are emitted from a metal surface when photons of energy $3.1 \mathrm{eV}$ or more impinge on it. In an experiment with this metal using a monochromatic radiation the stopping potential was found to be $2.5 \mathrm{~V}$. The energy of the photons used in the experiment is

1 $7.8 \mathrm{eV}$
2 $6.2 \mathrm{eV}$
3 $5.6 \mathrm{eV}$
4 $4.2 \mathrm{eV}$
EAMCET-1992
Dual nature of radiation and Matter

142171 In a photo electric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photo electric current.

1 Is doubled
2 Becomes four times
3 Remains constant
4 Is halved
Karnataka CET-2022
Dual nature of radiation and Matter

142196 When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons

1 decreases
2 increases
3 first decreases and then increases
4 remains same
MHT-CET 2020
Dual nature of radiation and Matter

142216 A metal surface of work function $3 \mathrm{eV}$ is illuminated by photons of energy $2 \mathrm{eV}$. The kinetic energy of emitted photo-electrons will be

1 $1 \mathrm{eV}$
2 $2 \mathrm{eV}$
3 $3 \mathrm{eV}$
4 0
UPSEE 2019
Dual nature of radiation and Matter

142268 A source of light is placed at a distance of 50 cm from an photocell and the stopping potential is found to be $V_{0}$. If the distance between the light source and photo cell is made $25 \mathrm{~cm}$, the new stopping potential will be

1 $\mathrm{V}_{0} / 2$
2 $\mathrm{V}_{0}$
3 $4 \mathrm{~V}_{0}$
4 $2 \mathrm{~V}_{0}$
COMEDK 2013
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Dual nature of radiation and Matter

142330 Photoelectrons are emitted from a metal surface when photons of energy $3.1 \mathrm{eV}$ or more impinge on it. In an experiment with this metal using a monochromatic radiation the stopping potential was found to be $2.5 \mathrm{~V}$. The energy of the photons used in the experiment is

1 $7.8 \mathrm{eV}$
2 $6.2 \mathrm{eV}$
3 $5.6 \mathrm{eV}$
4 $4.2 \mathrm{eV}$
EAMCET-1992
Dual nature of radiation and Matter

142171 In a photo electric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photo electric current.

1 Is doubled
2 Becomes four times
3 Remains constant
4 Is halved
Karnataka CET-2022
Dual nature of radiation and Matter

142196 When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons

1 decreases
2 increases
3 first decreases and then increases
4 remains same
MHT-CET 2020
Dual nature of radiation and Matter

142216 A metal surface of work function $3 \mathrm{eV}$ is illuminated by photons of energy $2 \mathrm{eV}$. The kinetic energy of emitted photo-electrons will be

1 $1 \mathrm{eV}$
2 $2 \mathrm{eV}$
3 $3 \mathrm{eV}$
4 0
UPSEE 2019
Dual nature of radiation and Matter

142268 A source of light is placed at a distance of 50 cm from an photocell and the stopping potential is found to be $V_{0}$. If the distance between the light source and photo cell is made $25 \mathrm{~cm}$, the new stopping potential will be

1 $\mathrm{V}_{0} / 2$
2 $\mathrm{V}_{0}$
3 $4 \mathrm{~V}_{0}$
4 $2 \mathrm{~V}_{0}$
COMEDK 2013
NEET DIGITAL LIBRARY
Dual nature of radiation and Matter

142330 Photoelectrons are emitted from a metal surface when photons of energy $3.1 \mathrm{eV}$ or more impinge on it. In an experiment with this metal using a monochromatic radiation the stopping potential was found to be $2.5 \mathrm{~V}$. The energy of the photons used in the experiment is

1 $7.8 \mathrm{eV}$
2 $6.2 \mathrm{eV}$
3 $5.6 \mathrm{eV}$
4 $4.2 \mathrm{eV}$
EAMCET-1992
Dual nature of radiation and Matter

142171 In a photo electric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photo electric current.

1 Is doubled
2 Becomes four times
3 Remains constant
4 Is halved
Karnataka CET-2022
Dual nature of radiation and Matter

142196 When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons

1 decreases
2 increases
3 first decreases and then increases
4 remains same
MHT-CET 2020
Dual nature of radiation and Matter

142216 A metal surface of work function $3 \mathrm{eV}$ is illuminated by photons of energy $2 \mathrm{eV}$. The kinetic energy of emitted photo-electrons will be

1 $1 \mathrm{eV}$
2 $2 \mathrm{eV}$
3 $3 \mathrm{eV}$
4 0
UPSEE 2019
Dual nature of radiation and Matter

142268 A source of light is placed at a distance of 50 cm from an photocell and the stopping potential is found to be $V_{0}$. If the distance between the light source and photo cell is made $25 \mathrm{~cm}$, the new stopping potential will be

1 $\mathrm{V}_{0} / 2$
2 $\mathrm{V}_{0}$
3 $4 \mathrm{~V}_{0}$
4 $2 \mathrm{~V}_{0}$
COMEDK 2013
Join With Us for More Updates
Dual nature of radiation and Matter

142330 Photoelectrons are emitted from a metal surface when photons of energy $3.1 \mathrm{eV}$ or more impinge on it. In an experiment with this metal using a monochromatic radiation the stopping potential was found to be $2.5 \mathrm{~V}$. The energy of the photons used in the experiment is

1 $7.8 \mathrm{eV}$
2 $6.2 \mathrm{eV}$
3 $5.6 \mathrm{eV}$
4 $4.2 \mathrm{eV}$
EAMCET-1992
Dual nature of radiation and Matter

142171 In a photo electric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photo electric current.

1 Is doubled
2 Becomes four times
3 Remains constant
4 Is halved
Karnataka CET-2022
Dual nature of radiation and Matter

142196 When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons

1 decreases
2 increases
3 first decreases and then increases
4 remains same
MHT-CET 2020
Dual nature of radiation and Matter

142216 A metal surface of work function $3 \mathrm{eV}$ is illuminated by photons of energy $2 \mathrm{eV}$. The kinetic energy of emitted photo-electrons will be

1 $1 \mathrm{eV}$
2 $2 \mathrm{eV}$
3 $3 \mathrm{eV}$
4 0
UPSEE 2019
Dual nature of radiation and Matter

142268 A source of light is placed at a distance of 50 cm from an photocell and the stopping potential is found to be $V_{0}$. If the distance between the light source and photo cell is made $25 \mathrm{~cm}$, the new stopping potential will be

1 $\mathrm{V}_{0} / 2$
2 $\mathrm{V}_{0}$
3 $4 \mathrm{~V}_{0}$
4 $2 \mathrm{~V}_{0}$
COMEDK 2013