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Question : When did Heinrich Hertz discover the photoelectric effect and observe that shining ultraviolet light on the electrodes caused a change in voltage between them?

Option 1: 1916

Option 2: 1902

Option 3: 1990

Option 4: 1887


Team Careers360 21st Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: 1887


Solution : The correct option is 1887.

In the year 1887, German physicist Heinrich Hertz made a pivotal discovery related to the photoelectric effect while researching radio waves. In the course of his experiments, Hertz utilised a spark gap consisting of two closely spaced, sharp electrodes capable of generating electric sparks to identify the presence of electromagnetic waves.

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