Home
Class 12
PHYSICS
Consider the situation described in the ...

Consider the situation described in the previous problem. Show that the force on the sphere due to the light falling on it is the same even if the sphere is not perfectly absorbing.

Text Solution

Verified by Experts

For a perfectly refelecting solid sphere of radius 'r' kept in the path of a parallel beam of light of large aperture with intensity T ,
Force exerted `= pi r^(2) -1 / c `
i.e., same as above .
Promotional Banner

Topper's Solved these Questions

  • PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY

    HC VERMA|Exercise objective II|7 Videos

  • PERMANENT MAGNETS

    HC VERMA|Exercise Exercise|25 Videos

  • PHOTOMETRY

    HC VERMA|Exercise All Questions|44 Videos

Similar Questions

Explore conceptually related problems

Consider the situation of the previous problem. The force on the central charge due to the shell is

Consider the situation described in the previous problem. Where should a point source be placed on the principal axis so that the two images form at the same place ?

Consider the situation of the previous problem. The directions of the magnetic field due to the dipole are opposite at

Consider the situation described in the previous problem. Suppose the current I enters the loop at the point A and leaves it at the point B. Find the magnetic field at the centre of the loop.

Consider the situations of the previous proble. Let the water push the left wass by a force F_1 and the right wall byi as force F_2 .

Consider the situation of the previous problem, if the mirror reflects only 64% of the light energy falling on it, what will be the ratio of the maximum to the minimum intensity in the interference pattern observed on the screen ?

A point source of light is placed at the centre of curvature of a hemispherical surface. The radius of curvature is r and the inner surface is completely reflecting. Find the force on the hemisphere due to the light falling on its if the source emits a power W.

Consider the situation of the previous problem. Consider the fastest electron emitted parallel to the large metal plate. Find the displacement of this electron parallel to its initial velocity before it strikes the large metal plate.

Consider the situation of the previous problem. (a) Calculate the force needed to keep the sliding wire moving with a constant velocity v. (b) If the force needed just after t = 0 is F_0 , find the time at which the force needed will be F_0 /2.

A swimmer wishes to cross a 500 m wide river flowing at 5 km/h. His speed with respect to water is 3 km/h. Consider the situation of the previous problem. The man has to reach the other shore at the point directly opposite to his starting point. If the reaches the other shore somewhere else, he has to walk down to this point. Find the minimum distance that he has to walk.

HC VERMA-PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY-Exercise
  1. A 100 W light bulb is placed at the centre of a spherical chamber of r...

    Text Solution

    |

  2. A sphere of radius 1.00 cm is placed in the path of a parallel beam of...

    Text Solution

    |

  3. Consider the situation described in the previous problem. Show that th...

    Text Solution

    |

  4. It is not possible for a photon to be completely absorbed by a free el...

    Text Solution

    |

  5. Two neutral particles are kept 1m apart. Suppose by some mechanism som...

    Text Solution

    |

  6. Find the maximum kinetic energy of the photoelectrons ejected when lig...

    Text Solution

    |

  7. The work function of a metal is 2.5 xx 10^-19 J. (a) Find the thresho...

    Text Solution

    |

  8. The work function of a photoelectric material is 4.0 e V. (a) What i...

    Text Solution

    |

  9. Find the maximum magnitude of the linear momentum of a photoelectron e...

    Text Solution

    |

  10. When a metal plate is exposed to a monochromatic beam of light of wave...

    Text Solution

    |

  11. In an experiment on photoelectric effect, the stopping potential is me...

    Text Solution

    |

  12. The electric field associated with a monochromatic beam of light becom...

    Text Solution

    |

  13. The electric field associated with a light wave is given by E= E0 sin...

    Text Solution

    |

  14. The electric field at a point associated with a light wave is E=100Vm^...

    Text Solution

    |

  15. A monochromatic light source of power 5mW emits 8 xx 10^(15) photons p...

    Text Solution

    |

  16. Figure is the plot of the stopping potential versus the frequency of t...

    Text Solution

    |

  17. A photographic film is coated with a silver bromide layer. When light ...

    Text Solution

    |

  18. In an experiment on photoelectric effect light of wavelength 400 nm is...

    Text Solution

    |

  19. A silver ball of radius 4.8 cm is suspended by a thread in a vacuum ch...

    Text Solution

    |

  20. In an experiment on photoelectric effect, the emitter and the collecto...

    Text Solution

    |