Given below are two statements:Statement I: O | vedclass

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(A) Statement $I$: The energy of a photon is given by $E = hf$. Ultraviolet $(UV)$ rays have a higher frequency compared to infrared rays and microwav

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Statement $I$ is true but Statement $II$ is false.

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(A) Statement $I$: The energy of a photon is given by $E = hf$. Ultraviolet $(UV)$ rays have a higher frequency compared to infrared rays and microwaves. Since $E = hf$,$UV$ rays carry more energy per photon,making them more effective at overcoming the work function of a metal to emit electrons. Thus,Statement $I$ is true.Statement $II$: According to Einstein's photoelectric equation,$KE_{\max} = hf - \phi$,where $hf$ is the energy of the incident photon and $\phi = hf_0$ is the work function. This equation shows that $KE_{\max}$ increases linearly with the frequency $f$ of the incident light,not inversely. Thus,Statement $II$ is false.

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