Answer
Verified
377.9k+ views
Hint: When some wave is generated from some source and starts travelling in a particular direction then different points of the wave have different phases. The definition of wavefront arises from the same phase condition for some particular wave.
Complete answer:
Wavefront is defined as the imaginary surface constructed by the locus of all points of a wave that have the same phase, i.e. have the identical path length from the source of that wave.
Fig is of Plane wavefront and spherical wavefront
Properties and Explanation:
Wavefront has some interesting properties:
- For an electromagnetic(EM) wave, the wavefront surface is always perpendicular to the ray which denotes the direction of propagation of the EM wave.
- At every point the plane containing electric and magnetic field vectors for an EM wave, is tangential to the wavefront.
- Wavefront is not a stationary object. It propagates along the direction of propagation of the wave with a velocity same as that of the wave.
The nature of the wavefront depends upon the nature of the rays of the wave. For parallel rays, the wavefront is a plane surface, whereas for diverging or converging rays, the wavefront is spherical. If the rays have some varying divergence or convergence, the waveform takes another shape like ellipsoidal or parabolic, depending upon the nature of the source.
Note: Although, wavefront has a definite direction of propagation, it’s not a vector quantity. Rather it’s a time varying function that denotes a surface. The propagation of wavefront can be predicted using Huygens' principle.
Complete answer:
Wavefront is defined as the imaginary surface constructed by the locus of all points of a wave that have the same phase, i.e. have the identical path length from the source of that wave.
Fig is of Plane wavefront and spherical wavefront
Properties and Explanation:
Wavefront has some interesting properties:
- For an electromagnetic(EM) wave, the wavefront surface is always perpendicular to the ray which denotes the direction of propagation of the EM wave.
- At every point the plane containing electric and magnetic field vectors for an EM wave, is tangential to the wavefront.
- Wavefront is not a stationary object. It propagates along the direction of propagation of the wave with a velocity same as that of the wave.
The nature of the wavefront depends upon the nature of the rays of the wave. For parallel rays, the wavefront is a plane surface, whereas for diverging or converging rays, the wavefront is spherical. If the rays have some varying divergence or convergence, the waveform takes another shape like ellipsoidal or parabolic, depending upon the nature of the source.
Note: Although, wavefront has a definite direction of propagation, it’s not a vector quantity. Rather it’s a time varying function that denotes a surface. The propagation of wavefront can be predicted using Huygens' principle.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Change the following sentences into negative and interrogative class 10 english CBSE
Difference Between Plant Cell and Animal Cell
Write a letter to the principal requesting him to grant class 10 english CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Who is known as the Father of Yoga class 8 biology CBSE