The maximum value for the work function W 0 ( eV ) of the metal surface of the photomultiplier tube.

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Chapter 37, Problem 25P

(a)

To determine

The maximum value for the work function W0 (eV) of the metal surface of the photomultiplier tube.

(b)

To determine

The threshold value (eV) for the given conditions.

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(i) Define the term ‘threshold frequency’ as used in photoelectric effect. (ii) Plot a graph showing the variation of photoelectric current as a function of anode potential for two light beams having the same frequency but different intensities I1 and I2 (I1 > I2 ).

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