Question

X-rays of frequency nu are used to irrqdiate sodium and copper

Answer 1

Answer:

X rays of a particular wavelength are used to irradiate sodium and copper surfaces in two separate experiments and stopping potentials are determined . The stopping potential are. As the frequency of x-ray is same in both the cases. The work function of Na is 2.28 eV while for Cu it is 4.7 eV.

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