PHYSICS
JAMB 2021 - Question 33
Physics 2021 JAMB Past Questions - Question 33: The wave theory of light CANNOT be used be explain photoelectricity because
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
B
Explanation
the wave theory of light cannot explain the photoelectric effect because according to this theory, the energy of a wave is spread out over the entire wavefront, so increasing the intensity of light should eventually eject electrons regardless of the frequency. However, in the photoelectric effect, increasing the intensity of light only increases the number of ejected electrons, not their kinetic energy. This is in direct contradiction to the wave theory of light, which led to the development of the quantum theory of light to explain the photoelectric effect.
Frequently Asked Questions
Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.
You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.
Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.
Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.
Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.