Which Nobel Laureate conducted an experiment in the late 19th century and observe that a glass tube filled with a low-pressure gas emitted radiation when a voltage was applied between two metal plates?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Philipp Lenard.
- Philipp Lenard, a German physicist, conducted the experiment in the late 19th century. He observed that a glass tube filled with a low-pressure gas emitted radiation when a voltage was applied between two metal plates. This phenomenon, known as the Lenard tube experiment, contributed to the understanding of cathode rays and the discovery of electrons.
- Philipp Lenard was awarded the Nobel Prize in Physics in 1905 for his work on cathode rays.