Question

The maximum kinetic energy Ek(max) of the photoelectrons is measured for a range ofvalues off.unod is 82 x 10-19 J. The work function of the metal used is 8.2 x 10-1⁹ J. \text { Which graph shows the variation of } E_{\mathrm{k}(\max )} \text { with } f \text { ? }

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