Home
Class 12
PHYSICS
Statement - 1 : When ultraviolet light i...

Statement - 1 : When ultraviolet light is incident on a photocell , its stopping potential is `V_(0)` and the maximum kinetic energy of the photoelectrons is `K_(max)` when the ultraviolet light is replaces by X- rays both `V_(0) and K_(max)`increase
Statement - 2 : Photoelectrons are emitted with speeds ranging from zero to a maximum value became of the range of frequencies present in the incident light

A

Statement-1 is ture, Statement-2 is false

B

Statement-1 is ture, Statement- 2 is true, Statement-2 is the correct explanation of Statement-1

C

Statement-1 is ture, Statement- 2 is true, Statement-2 is not the correct explanation of Statement-1

D

Statement-1 is False, Statement-2 is ture

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Exercise-05(B)|46 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise MCQ s|8 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Exercise - 04[A]|25 Videos

  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|25 Videos

  • TEST PAPER

    ALLEN|Exercise PHYSICS|4 Videos

Similar Questions

Explore conceptually related problems

Statement - 1 : When ultraviolet light is incident on a photoncell , its stopping potential is V_(0) and the maximum kinetic energy of the photoelectrons is K_(max) when the altraviolet light is replaces by X- rays both V_(0) and K_(max) increase Statement - 2 : photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light

When ultraviolet light is incident on a photocell, its stopping potential is V_(0) and the maximum kinetic energy of the photoelectrons is K_(max) . When X-rays are incident on the same cell, then:

Light of frequency 4 v_(0) is incident on the metal of the threshold frequency v_(0) . The maximum kinetic energy of the emitted photoelectrons is

The maximu kinetic energy (E_(k)) of the photoelectron varies with frequency (v) of the incident light as shown by the curve:

Maximum kinetic energy (E_(k)) of a photoelectron varies with the frequency (v) of the incident radiation as

Light of frequency 8 xx 10^(15) Hz is incident on a substance of photoelectric work function 6.125 eV . The maximum kinetic energy of the emitted photoelectrons is

Light of wavelength 4000 Å is incident on a metal surface. The maximum kinetic energy of emitted photoelectron is 2 eV. What is the work function of the metal surface ?

The photoeletric threshold 4v is incident on the metal is v. When light of freqency 4v is incident on the metal, the maximum kinetic energy of the emitted photoelectron is

Assertion : The stopping potential depends on the frequency of incident light. Reason : The stopping potential is related to maximum kinetic energy by eV_(0)=K_(max) .

The photoelectric threshold frequency of a metal is v. When light of frequency 4v is incident on the metal . The maximum kinetic energy of the emitted photoelectrons is

ALLEN-SIMPLE HARMONIC MOTION-Exercise-04 [B]
  1. Wave property of electron implies that they will show diffraction effe...

    Text Solution

    |

  2. Wave property of electrons implies that they will show diffraction eff...

    Text Solution

    |

  3. Statement - 1 : When ultraviolet light is incident on a photocell , it...

    Text Solution

    |

  4. If the source of power 4 kW product10^(20) photons //second , the radi...

    Text Solution

    |

  5. This question has statement - 1 and statement - 2 of the four choice g...

    Text Solution

    |

  6. Statement-1: Davisson-Germer experiment established the wave nature of...

    Text Solution

    |

  7. The anode vollage of a photocell is kept fixed . The wavelength lambda...

    Text Solution

    |

  8. If N(0) is the original mass of the substance of half - life period t(...

    Text Solution

    |

  9. At a specific instant emission of radioactive compound is deflected in...

    Text Solution

    |

  10. Which of the following radiation has the least wavelength ?

    Text Solution

    |

  11. which a U^(238) nucleus original at rest , decay by emitting an alpha ...

    Text Solution

    |

  12. A radioactive sample at any instant has its disintegration rate 5000 d...

    Text Solution

    |

  13. A nucleus with Z =92 emits the following in a sequence: alpha,beta^(...

    Text Solution

    |

  14. Which of the following cannot be emitted by radioactive substances dur...

    Text Solution

    |

  15. In the nuclear fusion reaction (1)^(2)H + (1)^(3)H rarr (2)^(4)He + ...

    Text Solution

    |

  16. A nucleus ruptures into two nuclear parts, which have their velocity r...

    Text Solution

    |

  17. The binding energies per nucleon for deuteron (.1H^2) and helium (.2He...

    Text Solution

    |

  18. An alpha particle of energy 5 MeV is scattered through 180^(@) by a fo...

    Text Solution

    |

  19. The intensity of gamma radiation from a given source is I On passing...

    Text Solution

    |

  20. Starting with a sample of pure .^66 Cu, 7//8 of it decays into Zn in 1...

    Text Solution

    |