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Is photoelectric emission possible at all frequencies? Give reason for your

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Assume that the frequency of the radiation incident on a metal plate is greater than its threshold frequency. How will the following change, if the incident radiation is doubled?(1) Kinetic energy of electrons (2) Photoelectric

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Why are de – broglie waves associated with a moving football is not

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(a) Define photoelectric work function? What is its unit?(b) In a plot of photoelectric current versus anode potential, how does(i) Saturation current varies with anode potential for incident radiations of different frequencies but same intensity?(ii) The stopping potential varies for incident radiations of different intensities but same frequency.(iii) Photoelectric current vary for different intensities but same frequency of radiations? Justify your answer in each

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How does the stopping potential applied to a photocell change if the distance between the light source and the cathode of the cell is

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On what factor does the retarding potential of a photocell

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Electron and proton are moving with same speed, which will have more

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By how much would the stopping potential for a given photosensitive surface goup if the frequency of the incident radiations were to be increased from `4×10^(15) Hz` to `8 × 10^(15) Hz? ` `(h=6.4xx10^(-3)4Js,

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Work function of Na is 2.3eV. Does sodium show photoelectric emission for light on the velocity of

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An electron and an alpha particle have the same debroglie wavelength associated with them? How are their kinetic energies related to each

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An α − particle and a proton are accelerated from rest through same potential difference V. find the ratio of de–broglie wavelength associated with

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Photoelectric work function of a metal is 1eV. Light of wavelength `3000A^o` falls on it. What is the velocity of the effected

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The wavelength λ of a photon and debroglie wavelength of an electron have the same value. Show that the energy of the photon is `(2mcλ)/h` times the kinetic energy of electron where m, c, and h have their usual

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Draw a graph showing the variation of stopping potential with frequency of the incident radiations. What does the slope of the line with the frequency axis indicate. Hence define threshold

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Show does the force between two point charges change if the dielectric constant of the medium in which they are kept

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A charged rod P attracts rod R where as P repels another charged rod Q. What type of force is developed between Q and

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A free proton and a free electron are placed in a uniform field. Which of the two experience greater force and greater

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No two electric lines of force can intersect each other?

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A particle of mass m and charge q is released form rest in a uniform electric field of intensity E. calculate the kinetic energy it attains after moving a distance s between the

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Two point charges +q and +9q are separated by a distance of 10 a. Find the point on the line joining the two changes where electric field is

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