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According to Einstein's photoelectric equation, the plot of the kinetic energy of the emitted photo electrons from a metal vs the frequency, of the incident radiation gives a straight line whose slope

Asked in AIEEE 2004 · Stopping potential and kinetic energy graphs

• (1) depends on the nature of the metal used
• (2) depends on the intensity of the radiation
• (3) depends both on the intensity of the radiation and the metal used
• (4) is the same for all metals and independent of the intensity of the radiation

Step-by-step solution

Why the other options are wrong

• (1) comes from confuses the slope with the intercept, which is where the metal enters
• (2) comes from ties the slope to intensity, which appears nowhere in K=h u-φ
• (3) comes from combines both errors at once

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