Physics-
General
Easy

Question

The maximum kinetic energy (Ek ) of emitted photoelectrons against frequency v of incident radiation is plotted as shown in fig The slope of the graph is equal to

  1. charge on electron    
  2. work function of emitter    
  3. Planck’s constant    
  4. ratio of Planck’s constant and chargeon electron    

The correct answer is: Planck’s constant

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