Physics Exam > Physics Videos > Basic Physics for IIT JAM > Brownian Motion
Brownian Motion Video Lecture | Basic Physics for IIT JAM
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FAQs on Brownian Motion Video Lecture - Basic Physics for IIT JAM
| 1. What is Brownian motion? |  |
Ans. Brownian motion refers to the random movement of microscopic particles suspended in a fluid, such as water or air. It was first observed by the botanist Robert Brown in 1827 and is caused by the constant collision of the fluid molecules with the particles.
| 2. What causes Brownian motion? | |
Ans. Brownian motion is caused by the collision of fluid molecules with the microscopic particles. These collisions transfer momentum to the particles and result in their random movement. It is a consequence of the kinetic theory of matter, which states that all particles are in constant motion.
| 3. What are the applications of Brownian motion? | |
Ans. Brownian motion has various applications in different fields. In physics, it is used to study diffusion processes and to calculate particle sizes. In finance, it is employed to model stock prices and other financial variables. It also finds applications in chemistry, biology, and even computer science.
| 4. Can Brownian motion be observed in everyday life? | |
Ans. Yes, Brownian motion can be observed in everyday life. For example, if you look closely at dust particles in a beam of sunlight, you will notice their random motion, which is a manifestation of Brownian motion. Similarly, the movement of smoke particles in the air or the spreading of odor molecules can also be attributed to Brownian motion.
| 5. How does Brownian motion relate to the concept of temperature? | |
Ans. Brownian motion is directly related to temperature. As the temperature of a fluid increases, the kinetic energy of its molecules also increases. This higher kinetic energy leads to more frequent and energetic collisions with the suspended particles, resulting in more pronounced Brownian motion. Therefore, the intensity of Brownian motion can serve as an indicator of the temperature of the fluid.
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Dec 26, 2024 Last updated |
Video Description: Brownian Motion for Physics 2024 is part of Basic Physics for IIT JAM preparation.
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