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Is Huygen’s principle valid for longitudinal sound waves? - Physics

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प्रश्न

Is Huygen’s principle valid for longitudinal sound waves?

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उत्तर

Yes, it can Huygen’s principle basically states that every point wavefront can be considered as a secondary source of tiny wavelets that spread out in the forward direction of the wave itself. The disturbance due to the source propagates in spherical symmetry that is in all directions. The formation of the wavefront is in accordance with Huygen’s principle.
So, Huygen’s principle is valid for longitudinal sound waves also.

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पाठ 10: Wave Optics - MCQ I [पृष्ठ ६४]

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एनसीईआरटी एक्झांप्लर Physics [English] Class 12
पाठ 10 Wave Optics
MCQ I | Q 10.1 | पृष्ठ ६४

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

Explain the construction of plane wavefront using Huygens’ principle.


What is the shape of the wavefront in the following case?

Light emerging out of a convex lens when a point source is placed at its focus.


Use Huygens' principle to verify the laws of refraction.


The refractive indices of water and diamond are `4/3` and 2.42 respectively. Find the speed of light in water and diamond. (c = 3x108 m/s)


Using this principle draw a diagram to show how a plane wave front incident at the interface of the two media gets refracted when it propagates from a rarer to a denser medium. Hence verify Snell's law of refraction.


Huygens' principle of secondary wavelets may be used to

(a) find the velocity of light in vacuum

(b) explain the particle behaviour of light

(c) find the new position of a wavefront

(d) explain Snell's Law


Light waves travel in vacuum along the X-axis. Which of the following may represent the wave fronts?


With what type of source of light are cylindrical wave fronts associated?


According to Huygens principle, ______.


What is the geometrical shape of the wavefront for:

  1. Light diverging from a point source?
  2. The pattern of wavefront of the light from a distant star intercepted by earth?

Answer the following question briefly and to the point:

What is the phase difference between any two points lying on the same wavefront?


The inverse square law of intensity is valid for a


Figure shows a standard two slit arrangement with slits S1, S2, P1, P2 are the two minima points on either side of P (Figure). At P2 on the screen, there is a hole and behind P2 is a second 2-slit arrangement with slits S3, S4 and a second screen behind them.


Consider a point at the focal point of a convergent lens. Another convergent lens of short focal length is placed on the other side. What is the nature of the wavefronts emerging from the final image?


How is a wavefront different from a ray?


What type of wavefronts are associated with a source infinity?


Using Huygen’s wave theory of light, show that the angle of incidence is equal to the angle of reflection. Draw a neat and labelled diagram.


Represent diagrammatically how the incident planar wavefronts of wavelength λ pass through an aperture of size d, when d is approximately equal to λ.


Represent diagrammatically how the incident planar wavefronts of wavelength λ pass through an aperture of size d, when d is approximately equal to λ.


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