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Waves PPT Physics Class 11

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FAQs on Waves PPT Physics Class 11

1. What are waves?
Ans. Waves are disturbances that transfer energy from one place to another without transferring matter. They can be found in various forms, such as sound waves, light waves, and water waves.
2. How do waves form?
Ans. Waves form when a source of energy causes a vibration or disturbance that moves through a medium. This disturbance then transfers energy to nearby particles, causing them to vibrate and create a wave.
3. What is the difference between transverse and longitudinal waves?
Ans. Transverse waves are waves in which the particles of the medium move perpendicular to the direction of the wave. Examples include light waves and water waves. In contrast, longitudinal waves are waves in which the particles of the medium move parallel to the direction of the wave. Sound waves are an example of longitudinal waves.
4. What is wave frequency?
Ans. Wave frequency refers to the number of complete waves that pass a given point in a specific amount of time. It is measured in hertz (Hz) and determines the pitch of a sound wave or the color of a light wave.
5. Can waves be reflected and refracted?
Ans. Yes, waves can be reflected and refracted. Reflection occurs when a wave encounters a boundary or obstacle and bounces back, changing its direction. Refraction, on the other hand, occurs when a wave passes from one medium to another and changes its speed and direction. Both phenomena are important in understanding how waves interact with their environment.
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