Wave problem in Physics

In summary, the figure shows that particle d vibrates in phase with particle b when the two endpoints are fixed, while particle c does not. The spongy lining at the edges of the ripple tank serves to absorb the wave and prevent reflections.
  • #1
Johnny Leong
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0
From the figure, please see the attachment. Which particles vibrate in phase with particle b and why?
Can I say that particle c and d vibrate in phase with particle b?

Another question: What is the function of the spongy lining at the edges of ripple tank when we generate water wave in the ripple tank?
 

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  • #2
Assuming that you mean you picture to represent a wave with the two endpoints fixed, then d is in phase with b (they will always be at the same height). c is not.

As for the spongy lining, it is there to absorb the wave so you won't have reflections confusing the situation.
 
  • #3


In a wave problem in physics, it is important to understand the concept of phase and how particles vibrate in relation to each other. In the given figure, particle b is shown to be at its highest displacement, or crest, while particles c and d are also at their respective crests. This means that they are all vibrating in phase with each other, meaning they are all moving in the same direction and at the same time. This is because they are all located at points on the wave with the same amplitude and wavelength, causing them to vibrate in unison.

To answer the question, yes, it is correct to say that particles c and d vibrate in phase with particle b. This can also be observed by looking at the wave pattern in the figure, where the crests of particles b, c, and d are all aligned.

Moving on to the second question, the spongy lining at the edges of a ripple tank serves as a boundary for the water waves that are generated. This helps to contain the waves within the tank and prevent them from reflecting off the edges. This allows for a more controlled and accurate observation of the wave behavior, as the waves will not be affected by any external factors. Additionally, the spongy lining also helps to reduce any interference from external vibrations, ensuring that the waves being observed are solely generated by the device in the tank.
 

1. What is a wave in physics?

A wave in physics is a disturbance that travels through a medium, transferring energy from one point to another without actually moving the medium itself. This can be seen in various forms, such as water waves, sound waves, and light waves.

2. How is the speed of a wave determined?

The speed of a wave is determined by the properties of the medium it is traveling through, such as its density and elasticity. It is also influenced by the frequency and wavelength of the wave.

3. What is the difference between transverse and longitudinal waves?

Transverse waves are characterized by the oscillation of particles in a perpendicular direction to the direction of wave propagation. On the other hand, longitudinal waves are characterized by the oscillation of particles in the same direction as the wave is traveling.

4. What is the relationship between frequency and wavelength in a wave?

The frequency of a wave is inversely proportional to its wavelength. This means that as the frequency increases, the wavelength decreases, and vice versa.

5. How are waves used in real-life applications?

Waves have numerous real-life applications, such as in communication systems, medical imaging, and earthquake detection. They are also used in the production of music, as well as in various industrial processes.

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