Physics

Problem

A metal with threshold frequency

5.0 \times 10^{14} \,\text{AHz}

is successively exposed to two monochromatic beams A and B of equal intensity having frequencies

6.0 \times 10^{14} \,\text{AHz}

and

8.0 \times 10^{14} \,\text{AHz}

respectively. a. (i) Which beam produces the larger stopping potential? b. (ii) Arrange beams A and B in order of the maximum kinetic energy of the emitted electrons.

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