State and explain the main characteristics of the wavefront in easy and simply way.

Hello dear all readers,

Welcome to this new concept, so here in this concept you come to know about what are the main characteristics of the wavefront with explanation in easy and simply way.

So let's start to our topic !!!

i) The wavefronts travel or propagate as much as speed of light in all the direction in the isotropic medium.

Explanation : Here in this statement, it is clearly tell that the wavefront is able to travel or propagate with speed of light in the isotropic medium.

As you know that, the speed of light is 3×10^8  metre 

per second.

ii) The phase difference between any two points in the same consecutive wavefronts is 2π.

So that, if the phase at the crest is 2π, than the phase at the next consecutive crest is 4π and like wise so on.

So therefore, at any crest the phase is (2nπ) and the phase at any trough is (2n+1).

Where 'n' represent as integer.

iii) The wavefronts always travel or propagate in the forward direction only.

iv) In during the propagation of the spherical wavefront from the source than slowly slowly wave become weaker.

Reason for that is : The same energy is distributed over whole circumference of the circle.

So as the circle of radii get increasing than the wavefronts become slowly slowly weaker.

Let's take an one example on it : When you through stone in the pond or in the lake than, when the stone goes in the water, at that place ripples is get generated isn't it ?

After ripples get generated at specific point than slowly slowly it become less energetic, isn't it ?

So like wise here also in the spherical wavefront.

v) So let's know what is the response of wavefront in anisotropic medium. In the anisotropic medium, the wavefront travels or propagate with different different velocities in different different directions, it is because of variation in the densities of the medium.

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What is the expecting wavefront shape when the portion of the wavefront of light from a distant star intercepted by the earth ?

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Welcome to this new concept, so here in this concept you come to know about 'what is the expecting wavefront shape when the portion of the wavefront of light from a distant star intercepted by the earth ?

So let's come to our topic !!!

When the portion of the wavefront of light from the distant or faraway star intercepted by the earth ? than what should be it's geometrical wavefront shape ?

Here you know all about this !!!

As we already know that the star has it's own light means that it is one type of source of light which is very far, that is infinity.

So that when the light coming from the star, which is intercepted by the earth is a plane wavefront.

As you can see in the above given image or figure.

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What is the expecting shape of the wavefront when light emerging out of a convex lens ?

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Welcome to this new concept, so here in this concept you come to know 'about what is the shape of wavefront when light emerging out of a convex lens'.

So let's come to our topic !!!

When light emerging out of a convex lens than the shape of the wavefront is plane.

Explanation : When a point source placed at the focus of a convex lens, than whatever rays emerging or come out from the lens is in parallel form.

So that, the wavefront is a plane wavefront.

Here in the given above image you can see very clearly, how these rays emerging in a parallel form in a plane wavefront.

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What is the expecting shape of the wavefront when light diverging from a point source ?

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Welcome to this new concept.

So here in this concept you come to know about, what is the shape of the wavefront, when light diverging from a point source.

So let's come to our topic !!!

When light diverging from a point source than the shape of the wavefront is spherical in shape.

As you can see in the given image, you can easily understand that, how these light diverging from a  point source in spherical wavefront shape.

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What are the main characteristics of the wave normal !!!

Hello dear all readers,

Welcome to this concept, so here in this concept you come to know about the main characteristics of the wave normal in easy and simple way.

So let's come to our topic,

i) The wave normal gives the direction of propagation of wave.

Explanation : As you can see in the above given image than you can easily understand that how wave normal help to give direction to the propagation of wave.

Let's take an one example, the medium through which wave is propagated, for an example 'air' so the wave is move in the direction of air simply.

Actually medium or we can say channel gives the direction for propagation of wave.

So it means that, the wave normal work according to the medium through which is allow to propagate.

ii) The wave normal is perpendicular to the wavefront.

Explanation : As you can see in the given image, the wave normal is perpendicular to the wavefront.

It means that, the wave normal make an angle with wavefront is 90° Degree.

iii) In a homogeneous isotropic medium, the wave normal is same as direction of ray of light.

Explanation : In a homogeneous isotropic medium or channel, the wave normal is same as direction of light.

It means that , First of all we have to know that, what is homogeneous ?

Homogeneous : Homogeneous is a uniform structure.

Isotropic material : The isotropic material whose properties remains same when tested in different different directions.

When we allow to propagate wave normal in the Homogeneous isotropic medium then the direction of the wave normal is in the direction of ray of light.

iv) Wave normal is drawn from the point of generation of wavefront.

Explanation : Actually the wave normal is start from the point where wavefront is generated.

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State the different types of wavefront with suitable examples !!!

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Welcome to this concept, so in this concept you come to know the different types of wavefronts with examples.

So let's explore this concept !!!

The wavefront is three types,

i) Spherical wavefront

ii) Plane wavefront

iii) Cylindrical wavefront

So let's know about this different wavefronts with an examples !!!

i) Spherical wavefront : The wavefront which is originating from a point source of light at some finite distance is called as or known as 'spherical wavefronts'

The example of this spherical wavefronts is : The candle flame, which we use in our day to day life in the moments such as birthday, marriage anniversary, or when electricity cut off.

The candle flame glow in the form of spherical wavefront.

ii) Plane wavefront : The wavefronts which is originating from a point source of light at infinite distance is called as or known as 'plane wavefront'.

The example of this plane wavefront is : The light from the sun arrives at the surface of the earth in the form of plane wavefront.

iii) Cylindrical wavefront : The wavefront which is originating from the linear source or slit of light at some finite distance is called as or known as 'cylindrical wavefront'.

The example of this cylindrical wavefront is : When a tube light is glow, it glow in the form of 'cylindrical wavefront'.

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National science day celebrated in the remembrance of physicist C.V Raman !!!

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Welcome to this new concept, so here in this concept you come to know the most interesting information regarding to the National science day.

So let's start to explore the concept !!!

So first of all we know, why this National Science Day celebrated ?

The national science day celebrated is in the remembrance of our physicist or great scientist Chandrasekhara Venkata Raman.

Physicist C.V Raman : The great scientist physicist is an Indian scientist, he is well know by his work in the field of scattering of light.

For his discovery Sir Chandrasekhar venkata Raman was awarded the Nobel prize in physics in 1930.

History of The National Science Day

The National Council of Science and technology Communication (NCSTC) asked for permission to the Government of India for designate February 28 as National Science Day.

In the remembrance of great scientist physicist Chandrasekhar Venkata Raman for his great work so this event celebrated now all over Indian school, colleges, universities, scientific, technical, medical, and other research institutions.

What are the aim of celebrating National Science Day ?

The National Science Day celebrated to spread the message about the significant of science in our day to day life.

The National Science Day celebrated in the remembrance of great welfare contributed by science field in the life of human being to make life easier and comfortable this is all due to science field.

The theme of National Science Day 2021

So this year gives the theme on the celebration of National Science Day.

The aim of this year 2021 to encourage and inspire students towards in the field of science.

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Know complete kepler's laws of planetary motion in simple and easily | By scientechplus

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Welcome to this new concept, so here in this concept you will come to know about all kepler's law of planetary motion.

So let's start to know the concept,

So first of all we know that the kepler's first law,

The Kepler's first law planetary motion : The kepler's first law state that, the orbit of a planet is an ellipse with the sun at one of the foci or focus.

For understanding this kepler's law of planetary motion, first of all we need to know about, what is ellipse ?

So if we talk about ellipse than this ellipse have two foci or we can say two focus point.

This foci is same measure from the centre of the ellipse.

The longer foci diameter is known as or called as 'major axis'.

And the smaller foci diameter is known as or called as 'minor axis'.

So as like that, at one foci the sun is situated and rest of all planet revolve around the sun in elliptical orbit motion.

The second law of kepler's planetary motion : The second kepler's law state that, the line joining the planet and the sun sweeps equal areas in equal interval of time.

The planet which moving from point A to point B and the planet which move from point C to point D, according as you can see in the above given image, so if we calculate both cover area by the planet is same in equal interval of time.

So let's say if we consider, the planet cover 10 metre square in 2 minutes than so in the coming 2 minutes the planet will also cover only 10 metre square area.

I mean to say that, the planet cover equal area in equal interval of time not equal distance.

So this is only possible because of according to the kepler's suggested statement on, "A planet moves faster when it is closer to the sun and the planet moves slowly when it is farther from the sun".

So you have one question arises in your mind that, how it is possible when planet come closer to the sun it moves faster and when it farther from the sun it become slow ?

So the answer is : It is only because of gravitational pull.

When as planet arrives closer to the sun the gravitation pull become more and when the planet farther from the sun the gravitational pull become less.

The third law of kepler's planetary motion : The kepler's third law state that, the square of it's period of revolution around the sun is directly proportional to the cube of the mean distance of a planet from the sun.

The planet as much as time take to revolve around the sun, so square of that time and this is equal to the cube of it's semi major axis.

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Define about wavefront, wave normal and wave surface in simply and easily | By scientechplus

Hello dear all readers,

Welcome to this concept, so here in this concept you come to know the definition about wave front, wave normal and wave surface.

So let's define first of all 'wavefront'

i) Wavefront:- The locus of all the points of the medium to which waves reach simultaneously so that all the points are in the same phase or we can say all the points in same state of vibration is called as or known as 'wavefront'.

And the second is 'Wave normal'

ii) Wave normal:- A perpendicular line drawn to the surface of  a wavefront at any point of the wavefront in the direction of propagation towards light waves is called as or known as 'wave normal'.

And the last third is 'Wave surface'

iii) Wave surface:- The surface of a sphere with light source as centre and distance travelled by light waves as radius where each waves reach simultaneously is called as or known as 'wave surface'.

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