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JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter
The work functions of Aluminium and Gold are \(4.1\,eV\) and \(5.1\,eV\) respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is \(.......\)
- A \(1.24\)
- B \(2\)
- C \(1\)
- D \(1.5\)
Answer & Solution
Correct Answer
(C) \(1\)
Step-by-step Solution
Detailed explanation
\(eV _{ s }= k _{\max }\) \(V_x=\left\{\frac{h}{e}\right\} f+\left\{\frac{-\phi}{e}\right\}\) Slope is independent of nature of metal \(\operatorname{slope}\left(V_s\right)^{\text {Gold }}=\operatorname{slope}\left(V_s\right)^{\text {Alumiun }}\)
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