KCET · Physics · Dual Nature of Matter
According to Einstein's photoelectric equation, the graph of \(\mathrm{KE}\) of the photoelectron emitted from the metal versus the frequency of the incident radiation gives a straight line graph, whose slope
- A depends on the intensity of the incident radiation
- B depends on the nature of the metal and also on the intensity of incident radiation
- C is same for all metals and independent of the intensity of the incident radiation
- D depends on the nature of the metal
Answer & Solution
Correct Answer
(C) is same for all metals and independent of the intensity of the incident radiation
Step-by-step Solution
Detailed explanation
According to Einstein's photoelectric equation
\[
\mathrm{KE}_{\max }=\mathrm{hv}-\phi_{0}
\]
Comparing with the equation of straight line
\[
y=m x+c
\]
We get, slope of graph \(=h\)
\[
\mathrm{KE}_{\max }=\mathrm{hv}-\phi_{0}
\]
Comparing with the equation of straight line
\[
y=m x+c
\]
We get, slope of graph \(=h\)
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