Home
Class 12
PHYSICS
A radiation of energy E falls normally o...

A radiation of energy `E` falls normally on a perfctly refelecting surface . The momentum transferred to the surface is

A

`E//c`

B

`2E//c`

C

`Ec`

D

`E//c^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Total change in momentum from a reflecting surface `=2P`

The momentum of incident radiation `P=(2E)/c`
Hence, momentum transferred `=(2E)/c`
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

A radiation of energy E falls normally on a perfectly reflecting surface.The momentum transferred to the surface

A radiation of energy 'E'falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)

A radiation of energy E false normally on a perfectly reflecting surface. What is the momentum transferred to the surface is k£/c.what is the value of k ?

.Electromagnetic radiation of intensity Iis made incident normally on a perfect non-reflecting surface (i.e.perfect absorber).Then pressure developed on this surface would be ...

A radiation of frequency v_0 falls at an incident angle of 30^@ on a perfectly reflecting surface. Calculate the change in the momentum .

Light is incident normally on a completely absorbing surface with an energy flux of 25 Wcm^(-2) If the surface has an area of 25 cm^(2) the momentum transferred to the surface in 40 min time duration will be:

ALLEN-SIMPLE HARMONIC MOTION-Exercise-04 [B]
  1. Formation of covalent bonds in compound exhibits

    Text Solution

    |

  2. Two identical photocathode receive light of frequencies f(1) and f(2)....

    Text Solution

    |

  3. A radiation of energy E falls normally on a perfctly refelecting surfa...

    Text Solution

    |

  4. According to Einstein's photoelectric equation, the plot of the maximu...

    Text Solution

    |

  5. The work function of a substance is 4.0 eV. The longest wavelength of ...

    Text Solution

    |

  6. A photocell is illuminated by a small bright source places 1 m away w...

    Text Solution

    |

  7. If the kinetic energy of a free electron doubles , its de - Broglie wa...

    Text Solution

    |

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

    Text Solution

    |

  9. The time taken by a photoelectron to come out after the photon strikes...

    Text Solution

    |

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

    Text Solution

    |

  11. Photon of frequency v has a momentum associated with it. If c is the v...

    Text Solution

    |

  12. In an experiment, electrons are made to pass through a narrow slit of ...

    Text Solution

    |

  13. Wave property of electron implies that they will show diffraction effe...

    Text Solution

    |

  14. Wave property of electron implies that they will show diffraction effe...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |