142108
In photoelectric effect, the number of electrons ejected per second is :
1 proportional to the wavelength of light
2 proportional to the intensity of light
3 proportional to the work function of the metal
4 proportional to the frequency of light
Explanation:
B The number of photo electrons emitted per unit area per unit time is directly proportional to the intensity of incident light. Larger the intensity of incident radiation, large is the number of incident proton.
EAMCET-1996
Dual nature of radiation and Matter
142112
Which of the following statements is correct regarding the photoelectric experiment?
1 The photo current increases with intensity of light.
2 Stopping potential increases with increase in intensity of incident light.
3 The photo current increases with increase in frequency.
4 All of the above.
Explanation:
A Photocurrent increases linearly with intensity of the light but it is independent of its frequency. Stopping potential increases linearly with frequency of incident light but it is independent of intensity.
J and K CET- 2011
Dual nature of radiation and Matter
142117
A source of light is placed at a distance of $1 \mathrm{~m}$ from a photocell and the cut off potential is found to be $V_{0}$. If the lamp is now placed at a distance of $2 \mathrm{~m}$, the cut of potential will become
1 $2 \mathrm{~V}_{0}$
2 $\frac{\mathrm{V}_{0}}{2}$
3 $\frac{\mathrm{V}_{0}}{4}$
4 $V_{0}$
Explanation:
D The cut off potential does not depend upon the distance. So, New Stopping potential will remain unchanged.
J and K CET- 2000
Dual nature of radiation and Matter
142119
By increasing the intensity of incident light on the surface of a metal
1 kinetic energy of the photoelectrons increases.
2 number of emitted electrons increases.
3 kinetic energy and number of the electrons increases.
4 no effect.
Explanation:
B As the intensity of incident radiation is increased the energy received per unit area of the surface is increased. As the energy is increased the number of photoelectrons is increased the number of photoelectrons is increased which means the photoelectric current increases.
J and K CET- 1999
Dual nature of radiation and Matter
142120
Which of the following device is the application of Photoelectric effect?
1 Light emitting diode
2 Diode
3 Photocell
4 Transistor
Explanation:
C The photoelectric cells or photocells works on the principle of the photoelectric effect.
142108
In photoelectric effect, the number of electrons ejected per second is :
1 proportional to the wavelength of light
2 proportional to the intensity of light
3 proportional to the work function of the metal
4 proportional to the frequency of light
Explanation:
B The number of photo electrons emitted per unit area per unit time is directly proportional to the intensity of incident light. Larger the intensity of incident radiation, large is the number of incident proton.
EAMCET-1996
Dual nature of radiation and Matter
142112
Which of the following statements is correct regarding the photoelectric experiment?
1 The photo current increases with intensity of light.
2 Stopping potential increases with increase in intensity of incident light.
3 The photo current increases with increase in frequency.
4 All of the above.
Explanation:
A Photocurrent increases linearly with intensity of the light but it is independent of its frequency. Stopping potential increases linearly with frequency of incident light but it is independent of intensity.
J and K CET- 2011
Dual nature of radiation and Matter
142117
A source of light is placed at a distance of $1 \mathrm{~m}$ from a photocell and the cut off potential is found to be $V_{0}$. If the lamp is now placed at a distance of $2 \mathrm{~m}$, the cut of potential will become
1 $2 \mathrm{~V}_{0}$
2 $\frac{\mathrm{V}_{0}}{2}$
3 $\frac{\mathrm{V}_{0}}{4}$
4 $V_{0}$
Explanation:
D The cut off potential does not depend upon the distance. So, New Stopping potential will remain unchanged.
J and K CET- 2000
Dual nature of radiation and Matter
142119
By increasing the intensity of incident light on the surface of a metal
1 kinetic energy of the photoelectrons increases.
2 number of emitted electrons increases.
3 kinetic energy and number of the electrons increases.
4 no effect.
Explanation:
B As the intensity of incident radiation is increased the energy received per unit area of the surface is increased. As the energy is increased the number of photoelectrons is increased the number of photoelectrons is increased which means the photoelectric current increases.
J and K CET- 1999
Dual nature of radiation and Matter
142120
Which of the following device is the application of Photoelectric effect?
1 Light emitting diode
2 Diode
3 Photocell
4 Transistor
Explanation:
C The photoelectric cells or photocells works on the principle of the photoelectric effect.
142108
In photoelectric effect, the number of electrons ejected per second is :
1 proportional to the wavelength of light
2 proportional to the intensity of light
3 proportional to the work function of the metal
4 proportional to the frequency of light
Explanation:
B The number of photo electrons emitted per unit area per unit time is directly proportional to the intensity of incident light. Larger the intensity of incident radiation, large is the number of incident proton.
EAMCET-1996
Dual nature of radiation and Matter
142112
Which of the following statements is correct regarding the photoelectric experiment?
1 The photo current increases with intensity of light.
2 Stopping potential increases with increase in intensity of incident light.
3 The photo current increases with increase in frequency.
4 All of the above.
Explanation:
A Photocurrent increases linearly with intensity of the light but it is independent of its frequency. Stopping potential increases linearly with frequency of incident light but it is independent of intensity.
J and K CET- 2011
Dual nature of radiation and Matter
142117
A source of light is placed at a distance of $1 \mathrm{~m}$ from a photocell and the cut off potential is found to be $V_{0}$. If the lamp is now placed at a distance of $2 \mathrm{~m}$, the cut of potential will become
1 $2 \mathrm{~V}_{0}$
2 $\frac{\mathrm{V}_{0}}{2}$
3 $\frac{\mathrm{V}_{0}}{4}$
4 $V_{0}$
Explanation:
D The cut off potential does not depend upon the distance. So, New Stopping potential will remain unchanged.
J and K CET- 2000
Dual nature of radiation and Matter
142119
By increasing the intensity of incident light on the surface of a metal
1 kinetic energy of the photoelectrons increases.
2 number of emitted electrons increases.
3 kinetic energy and number of the electrons increases.
4 no effect.
Explanation:
B As the intensity of incident radiation is increased the energy received per unit area of the surface is increased. As the energy is increased the number of photoelectrons is increased the number of photoelectrons is increased which means the photoelectric current increases.
J and K CET- 1999
Dual nature of radiation and Matter
142120
Which of the following device is the application of Photoelectric effect?
1 Light emitting diode
2 Diode
3 Photocell
4 Transistor
Explanation:
C The photoelectric cells or photocells works on the principle of the photoelectric effect.
142108
In photoelectric effect, the number of electrons ejected per second is :
1 proportional to the wavelength of light
2 proportional to the intensity of light
3 proportional to the work function of the metal
4 proportional to the frequency of light
Explanation:
B The number of photo electrons emitted per unit area per unit time is directly proportional to the intensity of incident light. Larger the intensity of incident radiation, large is the number of incident proton.
EAMCET-1996
Dual nature of radiation and Matter
142112
Which of the following statements is correct regarding the photoelectric experiment?
1 The photo current increases with intensity of light.
2 Stopping potential increases with increase in intensity of incident light.
3 The photo current increases with increase in frequency.
4 All of the above.
Explanation:
A Photocurrent increases linearly with intensity of the light but it is independent of its frequency. Stopping potential increases linearly with frequency of incident light but it is independent of intensity.
J and K CET- 2011
Dual nature of radiation and Matter
142117
A source of light is placed at a distance of $1 \mathrm{~m}$ from a photocell and the cut off potential is found to be $V_{0}$. If the lamp is now placed at a distance of $2 \mathrm{~m}$, the cut of potential will become
1 $2 \mathrm{~V}_{0}$
2 $\frac{\mathrm{V}_{0}}{2}$
3 $\frac{\mathrm{V}_{0}}{4}$
4 $V_{0}$
Explanation:
D The cut off potential does not depend upon the distance. So, New Stopping potential will remain unchanged.
J and K CET- 2000
Dual nature of radiation and Matter
142119
By increasing the intensity of incident light on the surface of a metal
1 kinetic energy of the photoelectrons increases.
2 number of emitted electrons increases.
3 kinetic energy and number of the electrons increases.
4 no effect.
Explanation:
B As the intensity of incident radiation is increased the energy received per unit area of the surface is increased. As the energy is increased the number of photoelectrons is increased the number of photoelectrons is increased which means the photoelectric current increases.
J and K CET- 1999
Dual nature of radiation and Matter
142120
Which of the following device is the application of Photoelectric effect?
1 Light emitting diode
2 Diode
3 Photocell
4 Transistor
Explanation:
C The photoelectric cells or photocells works on the principle of the photoelectric effect.
142108
In photoelectric effect, the number of electrons ejected per second is :
1 proportional to the wavelength of light
2 proportional to the intensity of light
3 proportional to the work function of the metal
4 proportional to the frequency of light
Explanation:
B The number of photo electrons emitted per unit area per unit time is directly proportional to the intensity of incident light. Larger the intensity of incident radiation, large is the number of incident proton.
EAMCET-1996
Dual nature of radiation and Matter
142112
Which of the following statements is correct regarding the photoelectric experiment?
1 The photo current increases with intensity of light.
2 Stopping potential increases with increase in intensity of incident light.
3 The photo current increases with increase in frequency.
4 All of the above.
Explanation:
A Photocurrent increases linearly with intensity of the light but it is independent of its frequency. Stopping potential increases linearly with frequency of incident light but it is independent of intensity.
J and K CET- 2011
Dual nature of radiation and Matter
142117
A source of light is placed at a distance of $1 \mathrm{~m}$ from a photocell and the cut off potential is found to be $V_{0}$. If the lamp is now placed at a distance of $2 \mathrm{~m}$, the cut of potential will become
1 $2 \mathrm{~V}_{0}$
2 $\frac{\mathrm{V}_{0}}{2}$
3 $\frac{\mathrm{V}_{0}}{4}$
4 $V_{0}$
Explanation:
D The cut off potential does not depend upon the distance. So, New Stopping potential will remain unchanged.
J and K CET- 2000
Dual nature of radiation and Matter
142119
By increasing the intensity of incident light on the surface of a metal
1 kinetic energy of the photoelectrons increases.
2 number of emitted electrons increases.
3 kinetic energy and number of the electrons increases.
4 no effect.
Explanation:
B As the intensity of incident radiation is increased the energy received per unit area of the surface is increased. As the energy is increased the number of photoelectrons is increased the number of photoelectrons is increased which means the photoelectric current increases.
J and K CET- 1999
Dual nature of radiation and Matter
142120
Which of the following device is the application of Photoelectric effect?
1 Light emitting diode
2 Diode
3 Photocell
4 Transistor
Explanation:
C The photoelectric cells or photocells works on the principle of the photoelectric effect.
