Brownian Motion
Mediumphysics
Brownian motion evidence supports existence of:
Select the correct option:
Solution
Incorrect! Answer:
Atoms/molecules
Brownian motion is the random, erratic movement of microscopic particles suspended in a fluid.
- Albert Einstein explained this in 1905 as being caused by the random bombardment of the particle by the individual, discrete molecules of the fluid.
- Jean Perrin's subsequent experiments verified Einstein's theory and provided the first definitive proof of the existence of atoms/molecules as per the kinetic theory.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
About This Question
- Subject
- physics
- Chapter
- kinetic theory of gases
- Topic
- brownian motion
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Atoms/molecules
Brownian motion is the random, erratic movement of microscopic particles suspended in a fluid.
- Albert Einstein explained this in 1905 as being caused by the random bombardment of the particle by the individual, discrete molecules of the fluid.
- Jean Perrin's subsequent experiments verified Einstein's theory and provided the first definitive proof of the existence of atoms/molecules as per the kinetic theory.
This medium difficulty physics question is from the chapter kinetic theory of gases, covering the topic of brownian motion. It appeared in the 2025 exam.
Looking for more practice? Explore all physics questions or browse kinetic theory of gases questions on RankGuru.