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Wavefront means...

Wavefront means

A

All particles in it have same phase

B

All the particles have opposite phase of vibration

C

Few particles are in same phase, rest are in opposite phase

D

None of these

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A
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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. Wavefronts incident on an interface between the media are shown in the figure. the refracted wavefront will be as shown in

Wavefront of a wave has direction with wave motion

How is a wavefront related to the direction of corresponding rays ?

Wavefront is the locus of all points, where the particles of the medium vibrate with the same

Wavefront is the locus of all points, where the particles of the medium vibrate with the same

Figure shows wavefront P Passing through two systems A and B, and emerging as Q and then as R. Then systems A and B could, respectively, be

AAKASH INSTITUTE ENGLISH-WAVE OPTICS-Assignment (Section-A (objective type question(one option is correct)))
  1. The idea of secondary wavelets for the propagation of a wave was first...

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  2. Two sources of waves are called coherent if

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  3. Wavefront means

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  4. Two coherent monochromatic light beams of intensities I and 4I are sup...

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  5. Two identical light waves, propagating in the same direction, have a p...

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  6. For constructive interference to take place between two monochromatic ...

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  7. Wavefront of a wave has direction with wave motion

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  8. If the amplitude ratio of two sources producing interference is 3:5 th...

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  9. Rays diverge from a point source of a wavefront that is

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  10. Young's experiment establishes that

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  11. Monochromatic green light of wavelength 5 times 10^-7m illuminates a p...

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  12. In Young'double-slit interference experiment, if the slit separation i...

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  13. In young's double slit experiment, the seperation between the slits is...

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  14. The maximum intensity of fringes in Young's experiment is I. If one of...

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  15. In the standard Young's double slit experiment, the intensity on the s...

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  16. In Young's double slit experiment, the fringe width is found to be 0.4...

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  17. In YDSE, d = 2 mm, D = 2 m, and lambda = 500 nm. If intensities of two...

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  18. In the Young's double-slit experiment, the intensity of light at a poi...

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  19. Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å. ...

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  20. In Young's interference experiment, the central bright fringe can be i...

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