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Forced Oscillation, Phase & Group Velocity, Wave & Optics Video Lecture | Crash Course for IIT JAM Physics
FAQs on Forced Oscillation, Phase & Group Velocity, Wave & Optics Video Lecture - Crash Course for IIT JAM Physics
| 1. What is forced oscillation? |  |
Ans. Forced oscillation refers to the oscillatory motion of a system under the influence of an external force or driving force. This force acts in a periodic manner and causes the system to deviate from its natural or equilibrium state. The frequency of the external force may or may not be equal to the natural frequency of the system.
| 2. What is phase velocity in wave mechanics? | |
Ans. Phase velocity in wave mechanics refers to the velocity at which the phase of a wave propagates in space. It represents the speed at which a particular phase of a wave, such as a crest or trough, moves through a medium. Mathematically, phase velocity is given by the ratio of wavelength to the period of the wave.
| 3. What is group velocity in wave mechanics? | |
Ans. Group velocity in wave mechanics refers to the velocity at which the energy or information associated with a wave propagates through a medium. Unlike phase velocity, which represents the speed of a particular phase, the group velocity represents the speed at which wave packets, composed of multiple wave components, propagate. It is determined by the dispersion relation of the wave.
| 4. How are waves and optics related? | |
Ans. Waves and optics are closely related as optics is the branch of physics that deals with the behavior and properties of light, which is an electromagnetic wave. Optics studies the interaction of light with matter, such as reflection, refraction, diffraction, and interference. These phenomena can be explained using the wave nature of light.
| 5. What are NCERT solutions? | |
Ans. NCERT solutions are comprehensive and detailed answers to the questions and exercises given in the NCERT textbooks. These solutions are prepared by subject matter experts and provide step-by-step explanations, making it easier for students to understand and solve problems. NCERT solutions are widely used by students preparing for various examinations as they provide a reliable and accurate resource for learning.
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Dec 27, 2024 Last updated |
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