Physics

Problem

The threshold frequencies of four metals A, B, C and D are

4.0\times10^{14}\,\text{Hz}

5.5\times10^{14}\,\text{Hz}

3.2\times10^{14}\,\text{Hz}

and

6.0\times10^{14}\,\text{Hz}

respectively. a. (i) Arrange the metals in increasing order of their work functions. b. (ii) Which metal will emit photoelectrons most readily when illuminated by light of frequency

7.0\times10^{14}\,\text{Hz}

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