Home
Class 12
PHYSICS
If K(1) and K(2) are maximum kinetic ene...

If `K_(1) and K_(2)` are maximum kinetic energies of photoelectrons emitted when light of wavelength `lambda_(1) and lambda_(2)` respectively are incident on a metallic surface. If `lambda_(1)=3lambda_(2)` then

A

`K_(1) gt K_(2)//3`

B

`K_(1) lt K_(2)//3`

C

`K_(1)=3K_(2)`

D

`K_(2)=3K_(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 12

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NEET MOCK TEST 14

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

If K_(1) and K_(2) are maximum kinetic energies of photoelectrons emitted when light of wavelength lambda_(2) and lambda_(1) respectively are incident on a metallic surface. If lambda_(1)=3lambda_(2) then

Let be the maximum kinetic energy of photoelectrons emitted by light of wavelength lambda_(1) and lambda_(2) correspondingto wavelength lambda_(2) . If lambda_(1) = 2lambda_(2) then:

Let K_(1) be the maximum kinetic energy of photoelectrons emitted by a light of wavelength lambda_(1) and K_(2) corresponding to lambda_( 2). If lambda_(1) = 2lambda_(2) , then

The maximum kinetic energies of photoelectrons emitted from a metal are k_(1) and k_(2) when it is irradiated with light of wavelenght lambda_(1) and lambda_(2) respectively. Find work function of the metal.

A dye absorbs a photon of wavelength lambda and re - emits the same energy into two phorons of wavelengths lambda_(1) and lambda_(2) respectively. The wavelength lambda is related with lambda_(1) and lambda_(2) as :

NTA MOCK TESTS-NEET MOCK TEST 13-MCQs (PHYSICS)
  1. A radioactive material has mean lives of 1620 years and 660 years for ...

    Text Solution

    |

  2. Two wires A an dB of the same material, having radii in the ratio I : ...

    Text Solution

    |

  3. If K(1) and K(2) are maximum kinetic energies of photoelectrons emitte...

    Text Solution

    |

  4. In Uranium (Z=92), the K absorption edge is 0.107 Å and the K(alpha) l...

    Text Solution

    |

  5. A camera objective has an aperture diameter d . If the aperture is red...

    Text Solution

    |

  6. When an object is at distances x and y from a lens, a real image and a...

    Text Solution

    |

  7. In the given circuit the average power developed is:

    Text Solution

    |

  8. A current I = 10 sin (100pi t) amp. Is passed in first coil, which ind...

    Text Solution

    |

  9. What will be the magnetic field at point P in the figure below?

    Text Solution

    |

  10. The time of vibration of a dip needle in the vertical plane is 3 sec t...

    Text Solution

    |

  11. If only one hundredth part of total current flowing in the circuit is ...

    Text Solution

    |

  12. Separation between the plates of parallel plate capacitor is 5 mm. thi...

    Text Solution

    |

  13. A capacitor of capacitance 100(mu)F is charged by connecting it to a b...

    Text Solution

    |

  14. Positive charge q is given to each plate of a parallel plate air capac...

    Text Solution

    |

  15. Which of the following statements is correct?

    Text Solution

    |

  16. A 25 W, 220V bulb and 100W, 220V bulb are joined in series and connect...

    Text Solution

    |

  17. A solid, uncharged conducting sphere of radius 3a contains a concentri...

    Text Solution

    |

  18. Two point charges placed at a distance r in air exert a force f on eac...

    Text Solution

    |

  19. The root-mean-square (rms) speed of oxygen molecules (O(2)) at a certa...

    Text Solution

    |

  20. The pressure and volume of a given mass of gas at a given temperature ...

    Text Solution

    |