Waec 2024 Physics Question 25

Practice objective / multiple choice question 25 from the 2024 Waec Physics examination. This question covers Physics of Light, Photoelectric Effect .

Waec 2024 Physics Objective / Multiple Choice 3 Difficulty
Topics: Physics of Light Photoelectric Effect
Question 25 WAEC • 2024 • PHYSICS • objective

Light of energy \( 1.12 \times 10^{-18} \mathrm{~J} \) is incident on a metal of ejected electrons with maximum energy of \( 8.0 \times 10^{-19} \mathrm{~J} \). Calculate the threshold frequency of the metal, \( \left[h=6.626 \times 10^{-34} J s\right] \)

Answer Options

Correct Answer A. \( 4.8 \times 10^{14} \mathrm{Hz} \)
B. \( 1.2 \times 10^{15} \mathrm{~Hz} \)
C. \( 1.7 \times 10^{15} \mathrm{~Hz} \)
D. \( 2.8 \times 10^{15} \mathrm{~Hz} \)
Correct Answer
A
Correct Option:
\( 4.8 \times 10^{14} \mathrm{Hz} \)

About This Question

This is Waec 2024 Physics Question 25. It is one of the objective questions from the 2024 Waec Physics examination.

The question covers Physics of Light, Photoelectric Effect .

Difficulty level: 3 .

View More Waec 2024 Physics Questions More Waec Practice Questions Back to Questions

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