JEE Exam > JEE Videos > Physics for JEE Main & Advanced > Periodic & Oscillatory Motion
Periodic & Oscillatory Motion Video Lecture | Physics for JEE Main & Advanced
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FAQs on Periodic & Oscillatory Motion Video Lecture - Physics for JEE Main & Advanced
| 1. What is periodic motion? |  |
Ans. Periodic motion refers to the motion of an object that repeats itself after a regular interval of time. It follows a specific pattern, where the object returns to its initial position and velocity after completing one cycle. Examples of periodic motion include the swinging of a pendulum, the motion of a vibrating guitar string, or the rotation of Earth around the Sun.
| 2. How is the period of oscillatory motion related to its frequency? | |
Ans. The period of oscillatory motion and its frequency are inversely related. The period is the time taken to complete one cycle of motion, while the frequency is the number of cycles completed in one second. Mathematically, the period (T) and the frequency (f) are related by the equation: f = 1/T or T = 1/f. Therefore, as the frequency increases, the period decreases, and vice versa.
| 3. Are all periodic motions oscillatory? | |
Ans. No, not all periodic motions are oscillatory. While oscillatory motion is a type of periodic motion, not all periodic motions involve oscillations. Oscillatory motion refers to the back-and-forth movement of an object around a central position, while periodic motion simply refers to any motion that repeats itself after a regular interval. For example, the motion of a planet around the Sun is periodic but not oscillatory.
| 4. What is the difference between simple harmonic motion and periodic motion? | |
Ans. Simple harmonic motion (SHM) is a special type of periodic motion in which the restoring force acting on an object is directly proportional to its displacement from the equilibrium position and acts in the opposite direction. In SHM, the object oscillates back and forth around the equilibrium position with a constant amplitude and a constant period. On the other hand, periodic motion refers to any motion that repeats itself after a regular interval, regardless of the nature of the restoring force or the specific motion pattern.
| 5. How can we determine the amplitude of an oscillatory motion? | |
Ans. The amplitude of an oscillatory motion is determined by measuring the maximum displacement of the object from its equilibrium position. It represents the maximum distance the object moves away from its rest position during one cycle of motion. For example, in the case of a simple pendulum, the amplitude can be measured by finding the maximum angle the pendulum bob swings away from the vertical equilibrium position.
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Nov 21, 2024 Last updated |
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