Home
Class 12
PHYSICS
When radiation is incident on a photoele...

When radiation is incident on a photoelectron emitter, the stopping potential is found to be 9V. If `e//m` for the electron is `1.8xx10^(11)C//kg`, the maximum velocity of the ejected electron is

A

`6xx10^(5)ms^(-1)`

B

`8xx10^(5)ms^(-1)`

C

`1.8xx10^(6)ms^(-1)`

D

`1.8xx10^(5)ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 89

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos
  • NTA JEE MOCK TEST 91

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

When radiation is incident on a photoelectron emitter , the stopping potential is found to be 9 volts . If e//m for the electrons is 1.8 xx 10^(11) C kg^(-1) the maximum velocity of the ejected electrons is

When radiation is incident on a photoelectron emitter, the potential is found to be 9V. If e//m for the electron is 1.8cc10^(11)C//kg , the maximum velocity of the ejected electron is

Radiation is incident on a photosensitive surface and the stopping potential is found to be 9 V. What is the maximum velocity of the ejected photo electrons if the specific charge of the electron is 1.8xx10^(11) C/kg ?

An electron is accelerated through a potential difference of 200 volts. If e//m for the electron be 1.6 xx 10^(11) coulomb/kg, the velocity acquired by the electron will be

if e/m of electron is 1.76xx10^(11)C(kg)^(-1) andn stopping potential is 0.71 V, then the maximum velocity of the photoelectron is

The stopping potential of a photoelectric diode is 9 volts. e//m = 1.8 xx 10^(11) C kg^(-1) , then what is its velocity ?

The work function for calcium is 2.14 eV. When a light of wavelength 5500Å is incident on it, photoelectrons are emitted , Calculate (i) threshold frequency and threshold wavelength. (ii) maximum velocity of the emitted electrons. (iii) change in maximum kinetic energy of the emitted photoelectrons if the intensity of the incident light is doubled. Take : h = 6.6 xx10^(-34) Js m_e-9xx10^(-31) kg c= 3xx10^8m//s

Radiation of frequency v=9v_(0) is incident on a metal surface, having threshold frequency v_(0) . The maximum velocity of the ejected photoelectrons is 6xx10^(6)m//s . What will be the maximum velocity of the ejected photoelectrons , if v is reduced to 3v_(0) ?

In an electron gun, the electrons are accelerated by the potential V . If the e is the charge and m is the mass of the electron, then the maximum velocity of these electrons will be

NTA MOCK TESTS-NTA JEE MOCK TEST 90-PHYSICS
  1. The sun subtends an angle half a degree at the pole of a concave mirro...

    Text Solution

    |

  2. Calculate the rate of flow of glycerin of density 1.25xx10^(3) kg m^(-...

    Text Solution

    |

  3. When radiation is incident on a photoelectron emitter, the stopping p...

    Text Solution

    |

  4. One-fourth length of a uniform rod of mass m and length l is placed on...

    Text Solution

    |

  5. The potential energy of a particle varies with distance x from a fixed...

    Text Solution

    |

  6. Two masses m and M(gt m) are joined by a light string passing over a s...

    Text Solution

    |

  7. A block of mass m is pulled by a uniform chain of mass m tied to it by...

    Text Solution

    |

  8. A ferromagnetic material is heated above its curie temperature. Which ...

    Text Solution

    |

  9. Sensitivity of moving coil galvanometer is 's'. If a shunt of ((1)/(8)...

    Text Solution

    |

  10. A ceiling fan rotates about its own axis with some angular velocity....

    Text Solution

    |

  11. A ball is thrown from the ground to clear a wall 3 m high at a distan...

    Text Solution

    |

  12. The potential energy of a 1kg particle free to move along the x-axis i...

    Text Solution

    |

  13. When a wave travels in a medium, the particle displacement is given by...

    Text Solution

    |

  14. A rectangular wire loop with length a and width b lies in the xy-plane...

    Text Solution

    |

  15. Two points mass m and 2m are kept at a distance a. Find the speed of p...

    Text Solution

    |

  16. In a common base transistor circuit, the current gain is 0.98. On cha...

    Text Solution

    |

  17. In the electrical network shown in the figure, What will be the potent...

    Text Solution

    |

  18. Internal energy of n(1) mol of hydrogen of temperature T is equal to t...

    Text Solution

    |

  19. What is the amount of heat required (in calories) to convert 10 g of i...

    Text Solution

    |

  20. A thin film of soap solution (mu(s)=1.4) lies on the top of a glass pl...

    Text Solution

    |