---
title: "In a photoelectric effect experiment, monochromatic light of frequency \\(f_1\\) and intensity \\(I_1\\) is incident on a metal target in an evacuated tube with an adjustable potential difference \\(V\\), producing the photocurrent \\(I\\) as a function of \\(V\\) shown for Trial 1. The experiment is repeated on the same target using a second monochromatic light source with higher frequency \\(f_2 > f_1\\) and lower intensity \\(I_2 < I_1\\) to produce Trial 2. Which of the following graphs best represents the current \\(I\\) as a function of potential difference \\(V\\) for both trials?"
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url: "https://nerd-notes.com/ubq/123612/"
date_modified: "2026-09-28T12:00:35+00:00"
---

# In a photoelectric effect experiment, monochromatic light of frequency \(f_1\) and intensity \(I_1\) is incident on a metal target in an evacuated tube with an adjustable potential difference \(V\), producing the photocurrent \(I\) as a function of \(V\) shown for Trial 1. The experiment is repeated on the same target using a second monochromatic light source with higher frequency \(f_2 > f_1\) and lower intensity \(I_2 < I_1\) to produce Trial 2. Which of the following graphs best represents the current \(I\) as a function of potential difference \(V\) for both trials?

In a photoelectric effect experiment, monochromatic light of frequency \(f_1\) and intensity \(I_1\) is incident on a metal target in an evacuated tube with an adjustable potential difference \(V\), producing the photocurrent \(I\) as a function of \(V\) shown for Trial 1. The experiment is repeated on the same target using a second monochromatic light source with higher frequency \(f_2 > f_1\) and lower intensity \(I_2 < I_1\) to produce Trial 2. Which of the following graphs best represents the current \(I\) as a function of potential difference \(V\) for both trials?

- **A.** Graph A
- **B.** Graph B
- **C.** Graph C
- **D.** Graph D

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/123612/*