---
title: "An experiment investigating the photoelectric effect is conducted using different monochromatic light sources and clean metal surfaces as summarized in the table. Monochromatic light of wavelength \\(\\lambda_0\\) consists of photons each with energy \\(E_0 = 3\\Phi_0\\), where \\(\\Phi_0\\) is a reference work function. If no electrons are ejected during a trial, the maximum kinetic energy of ejected electrons is taken to be zero.  | Trial | Incident Wavelength | Work Function | |—|—|—| | 1 | \\(\\lambda_0\\) | \\(\\Phi_0\\) | | 2 | \\(\\dfrac{\\lambda_0}{2}\\) | \\(4\\Phi_0\\) | | 3 | \\(\\dfrac{\\lambda_0}{3}\\) | \\(6\\Phi_0\\) | | 4 | \\(2\\lambda_0\\) | \\(2\\Phi_0\\) |  Which of the following correctly ranks the maximum kinetic energy \\(K_{\\text{max}}\\) of the electrons ejected from the metal targets in the four trials?"
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url: "https://nerd-notes.com/ubq/123520/"
date_modified: "2026-09-28T12:00:01+00:00"
---

# An experiment investigating the photoelectric effect is conducted using different monochromatic light sources and clean metal surfaces as summarized in the table. Monochromatic light of wavelength \(\lambda_0\) consists of photons each with energy \(E_0 = 3\Phi_0\), where \(\Phi_0\) is a reference work function. If no electrons are ejected during a trial, the maximum kinetic energy of ejected electrons is taken to be zero.

| Trial | Incident Wavelength | Work Function |
|—|—|—|
| 1 | \(\lambda_0\) | \(\Phi_0\) |
| 2 | \(\dfrac{\lambda_0}{2}\) | \(4\Phi_0\) |
| 3 | \(\dfrac{\lambda_0}{3}\) | \(6\Phi_0\) |
| 4 | \(2\lambda_0\) | \(2\Phi_0\) |

Which of the following correctly ranks the maximum kinetic energy \(K_{\text{max}}\) of the electrons ejected from the metal targets in the four trials?

An experiment investigating the photoelectric effect is conducted using different monochromatic light sources and clean metal surfaces as summarized in the table. Monochromatic light of wavelength \(\lambda_0\) consists of photons each with energy \(E_0 = 3\Phi_0\), where \(\Phi_0\) is a reference work function. If no electrons are ejected during a trial, the maximum kinetic energy of ejected electrons is taken to be zero.

| Trial | Incident Wavelength | Work Function |
|---|---|---|
| 1 | \(\lambda_0\) | \(\Phi_0\) |
| 2 | \(\dfrac{\lambda_0}{2}\) | \(4\Phi_0\) |
| 3 | \(\dfrac{\lambda_0}{3}\) | \(6\Phi_0\) |
| 4 | \(2\lambda_0\) | \(2\Phi_0\) |

Which of the following correctly ranks the maximum kinetic energy \(K_{\text{max}}\) of the electrons ejected from the metal targets in the four trials?

- **A.** \(K_3 > K_2 > K_1 > K_4\)
- **B.** \(K_3 > K_1 = K_2 > K_4\)
- **C.** \(K_1 = K_2 > K_3 > K_4\)
- **D.** \(K_4 > K_1 > K_2 = K_3\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/123520/*