According to Einstein's explanation of the photoelectric effect, the maximum kinetic energy (KE_max) of the ejected electrons is given by KE_max = h(v - v₀), where h is Planck's constant, v is the frequency of incident light, and v₀ is the threshold frequency. This equation shows that for v > v₀, the maximum kinetic energy is directly proportional to the frequency of the incident light; increasing v leads to increased KE_max.
Which one of the following statements on photoelectric effect is NOT correct ?
Asked in UPSC CAPF 2020 · Topic: Optics (Laser: Principles and applications)
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Answer: C. At a frequency v > v₀, the kinetic energy of ejected electrons does not change on increasing the frequency of incident light
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