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According to Huygen's construction , tan...

According to Huygen's construction , tangential envelope which touches all the secondary spheres is the position of

A

original wavefront

B

secondary wavefront

C

geometrical wavefront

D

extended wavefront

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The correct Answer is:
B
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Huygen was the figure scientist who proposed the idea of wave theory of light he said that the light propagates in form of wavelengths. A wavefront is a imaginary surface of every point of which waves are in the same. phase. For example the wavefront for a point source of light is collection of concentric spheres which have centre at the origin w_(1) is a wavefront w_(2) is another wavefront. The radius of the wavefront at time 't' is 'ct' in thic case where 'c' is the speed of light the direction of propagation of light is perpendicular to the surface of the wavelength. the wavefronts are plane wavefronts in case of a parallel beam of light. Huygen also said that every point of the wavefront acts as the source of secondary wavelets. The tangent drawn to all secondary wavelets at a time is the new wavefront at that time. The wavelets are to be considered only in the forward direction (i.e., the direction of propagation of light) and not in the reverse direction if a wavefront w_(1) and draw spheres of radius 'cDeltat' they are called secondary wavelets. Draw a surface w_(2) which is tangential to all these secondary wavelets w_(2) is the wavefront at time t+Deltat Huygen proved the laws of reflection and laws of refraction using concept of wavefront. Q. A point source of light is placed at origin, in air. the equation of wavefront of the wave at time t, emitted by source at t=0 is (take refractive index of air as 1)

Huygen was the figure scientist who proposed the idea of wave theory of light he said that the light propagates in form of wavelengths. A wavefront is a imaginary surface of every point of which waves are in the same. phase. For example the wavefront for a point source of light is collection of concentric spheres which have centre at the origin w_(1) is a wavefront w_(2) is another wavefront. The radius of the wavefront at time 't' is 'ct' in thic case where 'c' is the speed of light the direction of propagation of light is perpendicular to the surface of the wavelength. the wavefronts are plane wavefronts in case of a parallel beam of light. Huygen also said that every point of the wavefront acts as the source of secondary wavelets. The tangent drawn to all secondary wavelets at a time is the new wavefront at that time. The wavelets are to be considered only in the forward direction (i.e., the direction of propagation of light) and not in the reverse direction if a wavefront w_(1) and draw spheres of radius 'cDeltat' they are called secondary wavelets. Draw a surface w_(2) which is tangential to all these secondary wavelets w_(2) is the wavefront at time t+Deltat Huygen proved the laws of reflection and laws of refraction using concept of wavefront. Q. Spherical wavefronts shown in figure, strike a plane mirror. reflected wavefront will be as shown in

Huygen was the figure scientist who proposed the idea of wave theory of light he said that the light propagates in form of wavelengths. A wavefront is a imaginary surface of every point of which waves are in the same. phase. For example the wavefront for a point source of light is collection of concentric spheres which have centre at the origin w_(1) is a wavefront w_(2) is another wavefront. The radius of the wavefront at time 't' is 'ct' in thic case where 'c' is the speed of light the direction of propagation of light is perpendicular to the surface of the wavelength. the wavefronts are plane wavefronts in case of a parallel beam of light. Huygen also said that every point of the wavefront acts as the source of secondary wavelets. The tangent drawn to all secondary wavelets at a time is the new wavefront at that time. The wavelets are to be considered only in the forward direction (i.e., the direction of propagation of light) and not in the reverse direction if a wavefront w_(1) and draw spheres of radius 'cDeltat' they are called secondary wavelets. Draw a surface w_(2) which is tangential to all these secondary wavelets w_(2) is the wavefront at time t+Deltat Huygen proved the laws of reflection and laws of refraction using concept of wavefront. Q. Wavefronts incident on an interface between the media are shown in the figure. the refracted wavefront will be as shown in

NIKITA PUBLICATION-WAVE THEORY OF LIGHT -Multiple Choice Questions
  1. Each and every point of the wavefront acts as

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  2. According to Huygen's construction which of the following wavefront do...

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  3. According to Huygen's construction , tangential envelope which touches...

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  4. Huygen's construction is used to determine the position of new

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  5. According to Huygen's construction, each point of secondary wavefront ...

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  6. The phenomenon of bouncing back of the light energy from the surface o...

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  7. The angle made by incident ray of light with the reflecting surface is...

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  8. The angle made by incident ray of light with the reflecting surface is...

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  9. The angle between reflected ray and normal to the reflecting surface i...

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  10. The angle between of the original direction of incident ray and reflec...

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  11. The angle of incidence is equal to angle of reflection is the statemen...

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  12. Which of the following statement is true in case of reflection of ligh...

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  13. When the light is reflected from the surface of the mirror, its speed ...

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  14. The incident ray, the reflected ray and normal to the reflecting surfa...

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  15. The phase difference between incident ray and reflected ray of light i...

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  16. We can see object due to

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  17. The wavefronts of light coming from a distant source of unknown shape...

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  18. The nature of visible light waves is similar to

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  19. Maxwell's electromagnetic theory of light suggests that light consists...

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  20. A plane mirrorr is approaching you at a speed of 10cm//sec.You can see...

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