Home
Class 12
PHYSICS
Two identical photocathodes receive ligh...

Two identical photocathodes receive light of frequencies `f_1` and `f_2`. If the velocities of the photo electrons (of mass m ) coming out are respectively `v_1` and `v_2` then

A

`f_1-f_2=(m(v_1^2-v_2^2))/(2h)`

B

`f_1+f_2=(m(v_1^2-v_2^2))/(2h)`

C

`f_1-f_2=(m(v_1^2+v_2^2))/(2h)`

D

`f_1+f_2=(m(v_1^2+v_2^2))/(2h)`

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION B.Objective (Only one answer)|6 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION C. Objective (More than one answer)|4 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise Try Yourself|41 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-J|10 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE|Exercise SECTION -J(Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

Two identical photo-cathodes receive light of frequencies v and v/2. If the velocities of the photo electrons (of mass m ) coming out are respectively V_1 and V_2 then

Two identical photocathodes receive light of frequencies v_(1) and v_(2) . If the velocities of the photoelectrons (of mass m) coming out are respectively v_(1) and v_(2) . then

Two identical photocathode receive light of frequencies f_(1) and f_(2) . If the maximum velocities of the photoelectrons (of mass m) coming out are respectively v_(1) and v_(2) then:

Two identical photocathodes receive light of frequency f_(1) andf_(2) if the velocites of the photo electrons (of mass m ) coming out are repectively v_(1) and v_(2) then

Two identical photo-cathodes receive light of frequencies v_1 and v_2 . If the velocities of the photoelectrons (of mass m) coming out are v_1 and v_2 respectively, then

Two identical photocathodes receive the light of frequencies f_(1) and f_(2) respectively. If the velocities of the photo-electrons coming out are v_(1) and v_(2) respectively, then

Light of frequency f_1 and f_2 fall on same metal and the max speed of photo electron is v_1 and v_2 resp. and mass is m. Find relation between v_1 and v_2 .

Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is

AAKASH INSTITUTE-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. If the work function of a metal is 'phi' and the frequency of the inci...

    Text Solution

    |

  2. The threshold frequency for a metallic surface correponds to an energy...

    Text Solution

    |

  3. Two identical photocathodes receive light of frequencies f1 and f2. If...

    Text Solution

    |

  4. Specific heat of water is 4.2 J//g.^(@)C. If light of frequency 3 xx 1...

    Text Solution

    |

  5. A red bulb and violet bulb of equal power emits n(R ) and n(v) number ...

    Text Solution

    |

  6. For a certain metal v is the five times of v(0) and the maximum veloci...

    Text Solution

    |

  7. Ultraviolet light of wavelength 66.26 nm and intensity 2 W//m^(2) fall...

    Text Solution

    |

  8. Two sources A and B have same power . The wavelength of radiation of A...

    Text Solution

    |

  9. The work function of a certain metal is 2.3 eV. If light of wave numbe...

    Text Solution

    |

  10. When the electromagnetic radiations of frequencies 4 xx 10^(15) Hz and...

    Text Solution

    |

  11. If the velocity of an electron is doubled, its de-Broglie frequency wi...

    Text Solution

    |

  12. The duration of a laser pulse is 10^(-8) s. The uncertainly in its ene...

    Text Solution

    |

  13. A proton and an alpha particle are accelerated through the same potent...

    Text Solution

    |

  14. How many photons are emitted by a laser source of 5 xx 10^(-3) W opera...

    Text Solution

    |

  15. The number of photons emitted by a 60 W bulb per second, if 10% of the...

    Text Solution

    |

  16. The momentum of a photon having energy equal to the rest energy of an ...

    Text Solution

    |

  17. A perfectly reflecting solid hemisphere of radius R is placed in the p...

    Text Solution

    |

  18. Find the ratio of de Broglie wavelength of molecules of hydrogen and h...

    Text Solution

    |

  19. A particle which has zero rest mass and non - zero energy and momentum...

    Text Solution

    |

  20. Dual Nature Of Electromagnetic Radiation

    Text Solution

    |