Home
Class 12
PHYSICS
The graph between the stopping potential...

The graph between the stopping potential `V_(0)` and frequency `v` for two different metal plates `P` and `Q` are shown in the figure. Which of the metals has greater threshold wavelength and work function.

Text Solution

Verified by Experts

`eV_(s)= hv-W`
`W=(hc)/(lambda_(th))`
From graph,
`W_(Q) gt W_(p)` So work function of `Q` is greater than `P`
`lambda_(th p) gt lambda_(th Q)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    RESONANCE|Exercise Advanved level problems|17 Videos

  • ATOMIC PHYSICS

    RESONANCE|Exercise Exercise-2 Part-III : Comprehension|12 Videos

  • ALTERNATING CURRENT

    RESONANCE|Exercise HIGH LEVEL PROBLEMS|11 Videos

  • CAPACITANCE

    RESONANCE|Exercise High Level Problems|16 Videos

Similar Questions

Explore conceptually related problems

In a photoelectric effect experiment, the graph between the stopping potential (V) and frequency (v) of the incident radiations on two different metal plates P and Q are shown in plates, P and Q has greater value of work function ? (ii) What does the slope of the lines depict?

In the study of a photoelectric effect the graph between the stopping potential V and frequency v of the incident radiation on two different metals P and Q is shown in fig. (i) which one of two metals have higher threshold frequency (ii) Determine the work function of the metal which has greater value (iii) Find the maximum kinetic energy of electron emitted by light of frequency 8xx10^(14) Hz for this metal.

The graph shows variation of stopping potential V_(0) versus frequency of incident radiation v for two photosensitive metals A and B . Which of two metals has higher threshold frequency and why?

Graph between stopping potential and frequency of light as shown find the work function

Work functions for metals A and B are 2 eV and 4 eV respectively. Which metal has a lower threshold wavelength and why ?

Draw a graph between stopping potential and the frequency of two metals A and B having threshold frequencies v_0 and 2v_0 .

Two metals A and B have work functions 4 eV and 10 eV respectively. Which metal has higher threshold wavelength?

Two metals a and b have work function 5 eV and 7 eV , respectively . Which metal has a lower threshold wavelength ?

The stopping potential (V_(0)) versus frequency (v) plot of a substance is shown in figure, the threshold wavelength is

RESONANCE-ATOMIC PHYSICS-Exercise -3 part -I JEE (Advanced)
  1. Define ionisation energy. What is the value for a hydrogen atom?

    Text Solution

    |

  2. Write Einstein's photoelectric equation. State clearly any two salient...

    Text Solution

    |

  3. Deduce an expression for the magnetic dipole moment of an electron orb...

    Text Solution

    |

  4. Define the term 'stopping potential' in relation to photoelectric effe...

    Text Solution

    |

  5. (a) Using de Broglie's hypothesis, explain with the help of a suitable...

    Text Solution

    |

  6. A proton and an electron have same velocity. Which one has greater de-...

    Text Solution

    |

  7. Using Einstein's photoelectric equation show how the cut -off voltage ...

    Text Solution

    |

  8. A nuclear fusion reaction is given by .(1)H^(2)+.(1)H^(2)rarr.(1)He^...

    Text Solution

    |

  9. Using Bohr's postulates, obtain the expression for the total energy of...

    Text Solution

    |

  10. Define the following in photoelectric effect phenomenon (a) (i) work...

    Text Solution

    |

  11. Calculate de Broglie wavelength associated with an electron, accelerat...

    Text Solution

    |

  12. Write Bohr's any two postulates for hydrogen atom.

    Text Solution

    |

  13. The graph shows variation of stopping potential V(0) versus frequency ...

    Text Solution

    |

  14. Why is it found experimentally difficult to detect neutrinos in nuclea...

    Text Solution

    |

  15. Using Rautherfold model of the atom, derive the expression for the tot...

    Text Solution

    |

  16. An electron microscope uses electrons accelerated by a voltage of 50kV...

    Text Solution

    |

  17. A ball of mass 0.12 kg is moving with a speed 20 m//s. Calculate the d...

    Text Solution

    |

  18. The graph between the stopping potential V(0) and frequency v for two ...

    Text Solution

    |

  19. A monochromatic light source of frequency 6xx10^(14)Hz is emitting ene...

    Text Solution

    |

  20. The ground state energy of hydrogen atom is-13.6 eV. What are the kine...

    Text Solution

    |