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In an advanced laboratory class a student performs the photoelectric experiment. Ultraviolet light is shone on a particular metal and the stopping potential is measured at the same time. It is found that 1.65 V is needed to stop all the electrons when the wavelength of the light is 272 nm, and 2.70 V for a wavelength of 228 nm.

1) What is the work function of the metal?

2) What is Planck's constant based on this measurement?

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  • Category:- Physics
  • Reference No.:- M9890773

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