Home
Class 12
PHYSICS
The collector plate in an experiment of ...

The collector plate in an experiment of photoelectric effect is kept vertical above the emitter plate. Light source is put on, and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction-

A

Photocurrent will increase.

B

Kinetic energy of electrons will increase

C

Stopping potential will decrease

D

threshold wavelength increase

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATTER WAVE

    MOTION|Exercise EXERCISE 3 (SECTION B)|7 Videos

  • MODERN PHYSICS - 2

    MOTION|Exercise EXERCISE - 4 (Level -II) PREVIOUS YEAR - JEE ADVANCED|28 Videos

Similar Questions

Explore conceptually related problems

The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate . Light source is put on and a saturation photo current is recorded . An electric field is switched on which has a vertically downward direction . Then

The anode plate in an experiment on photoelectric effect is kept vertically above the cathode plate. Light source is put on and a saturation photocurrent is recorded. An electric field is switched on which has vertically downward direction

A point source causes photoelectric effect from a small metal plate. Which of the curves in Fig. may represent the saturation photo-current as a function of the distance between the source and the metal?

A point source of light is used in an experiment on photoelectric effect . Which of the following curves best represents the variation of photo current (i) with distance (d) of the source from the emitter ?

A thin non conducting ring of mass m , radius a carrying a charge q can rotate freely about its own axis which is vertical. At the initial moment, the ring was at rest in horizontal position and no magnetic field was present. At instant t=0 , a uniform magnetic field is switched on which is vertically downward and increases with time according to the law B=B_0t . Neglecting magnetism induced due to rotational motion of ring. The magnitude of an electric field on the circumference of the ring is

A thin non conducting ring of mass m , radius a carrying a charge q can rotate freely about its own axis which is vertical. At the initial moment, the ring was at rest in horizontal position and no magnetic field was present. At instant t=0 , a uniform magnetic field is switched on which is vertically downward and increases with time according to the law B=B_0t . Neglecting magnetism induced due to rotational motion of ring. Find intantaneous power developed by electric force acting on the ring at t=1 s

A thin non-conducting ring mass m , radius a , carrying a charge q can rotate freely about its own axis which is vertical. At the initial moment the ring was at rest and no magnetic field was present. At instant t = 0 , a uniform magnetic field is switched on which is vertically downwards and increase with time according to the law B = B_(0)t . Neglecting magnetism induced due to totational motion of the ring. Now answer the following questions. The angular acceleration of the ring and its direction of rotation as seen from above: if E is induced e.m.f

A point source causes photoelectric effect from a small metal plate. Which of the following curves may represent the saturation photocurrent as a function of the distance between the source and the metal?

MOTION-MODERN PHYSICS-PHYSICS
  1. An electron moving with a velocity of 10^(6) m//s in the X-direction ...

    Text Solution

    |

  2. If the thermal energy of a monoatomic gas molecules of mass m at tempe...

    Text Solution

    |

  3. The collector plate in an experiment of photoelectric effect is kept v...

    Text Solution

    |

  4. A surface does not eject electrons when illuminated with blue light. T...

    Text Solution

    |

  5. If work function of a metal is 2 eV and light of 1 eV is incident on t...

    Text Solution

    |

  6. A cesium photocell, with a steady potential difference of 60 V across ...

    Text Solution

    |

  7. Light corresponding in the transition n = 4 to n = 2 in hydrogen atoms...

    Text Solution

    |

  8. When light of sufficiently high frequency is incident on a metallic su...

    Text Solution

    |

  9. A non-monochromatic light is used in an experiment on photoelectric ef...

    Text Solution

    |

  10. A freshly cleaned zinc plate is connected to the top of a positively c...

    Text Solution

    |

  11. The frequency and intensity of a light source are both doubled. Consid...

    Text Solution

    |

  12. When stopping potential is applied in an experiment on photoelectric e...

    Text Solution

    |

  13. When the intensity of a light source is increased (a) the number of ...

    Text Solution

    |

  14. A phot of energy h upsilon is absorbed by a free electron of a metal h...

    Text Solution

    |

  15. In a photoelectron experiment , the stopping potential for the photoel...

    Text Solution

    |

  16. If 5% of the energy supplied to a bulb is irradiated as visible light,...

    Text Solution

    |

  17. The work function of Na metal is 2.3 eV, then the threshold wavelengt...

    Text Solution

    |

  18. The patient is asked to drink BaSO(4) for examining the stomach by X-r...

    Text Solution

    |

  19. If I(0) and I(a) denote intensities of incident and absorbed X-rays, t...

    Text Solution

    |

  20. Generation of X-rays is a-

    Text Solution

    |