onsider the electron of a Li2+ ion that undergoes a transition from a higher energy state n to its adjacent lower energy state n – 1 (e.g. n = 2→1, 3→2, 4→3, etc) and emits a photon. Suppose the emitted photon is used to strike the surface of potassium, which has a threshold frequency of 5.464 × 10^14 s–1. What is the maximum initial quantum number, n, that is required in order to emit a photon with high enough energy to generate a photocurrent from the metal surface?
Consider the electron of a Li2+ ion that undergoes a transition from a higher energy state n to its adjacent lower energy state n – 1 (e.g. n = 2→1, 3→2, 4→3, etc) and emits a photon. Suppose the emitted photon is used to strike the surface of potassium, which has a threshold frequency of 5.464 × 10^14 s–1.
What is the maximum initial quantum number, n, that is required in order to emit a photon with high enough energy to generate a photocurrent from the metal surface?
Given:
The threshold potential of potassium is .
Introduction:
The photoelectric effect is the phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation.
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