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In an experiment to find the relationship between frequency of radiation and kinetic energy of photoelectrons in a photoelectric device, the following graph was obtained. Use...

      

In an experiment to find the relationship between frequency of radiation and kinetic energy of photoelectrons in a photoelectric device, the following graph was obtained.
fig72552019951.png
Use the graph to answer the following questions,
i) Determine the threshold frequency.
ii) Find the plank's constant h. .(Take the charge of an electron to be 1.6 x 10-19 C)
iii) Calculate the work function of the metal in joules.

  

Answers


Kavungya
fig82552019955.png
Kavungya answered the question on May 25, 2019 at 06:56


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Previous: Calculate the photon energy in ultraviolet radiation whose frequency is 8.60 x 1014 Hz. (Plank’s constant h=6.63 x 10-34 Js)

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