Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details
Get extra R 560 off
USE CODE: MOB20

				   what is meant by PHASE, PHASE CHANGE & INTERFERENCE in case of light ray ?


7 years ago

Share

										Hi
Wave can be added together either             constructively or destructively. The result of adding two             waves of the same frequency depends on the value of the             phase of the wave at the point in which the waves are             added.
Electromagnetic waves are subject to interference. For             two sources of electromagnetic waves to interfere

The sources must have the same frequency and polarization.
The sources must be coherent.
The superposition principle must apply.

In physics, interference is the addition (superposition) of two or more waves that result in a new wave pattern. Interference usually refers to the interaction of waves which are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency.
Two non-monochromatic waves are only fully coherent with each other if they both have exactly the same range of wavelengths and the same phase differences at each of the constituent wavelengths.
The total phase difference is derived from the sum of both the path difference and the initial phase difference (if the waves are generated from two or more different sources). It can then be concluded whether the waves reaching a point are in phase (constructive interference) or out of phase (destructive interference).

The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time t = 0. Phase is a frequency domain or Fourier transform domain concept, and as such, can be readily understood in terms of simple harmonic motion. The same concept applies to wave motion, viewed either at a point in space over an interval of time or across an interval of space at a moment in time. Simple harmonic motion is a displacement that varies cyclically, as depicted to the right.
It is described by the formula:
$x(t) = A\cdot \sin( 2 \pi f t + \theta ),\,$
where A is the amplitude of oscillation, f is the frequency, t is the elapsed time, and θ is the phase of the oscillation. The phase determines or is determined by the initial displacement at time t = 0. A motion with frequency f has period $T=\frac{1}{f}.$

7 years ago

# Other Related Questions on Wave Optics

What is principle of super position?explain with example??????????

hai gowrisankar, the principle of superposition is defined as or it states that for all linear systems the net response at a given time or place by two or more stimuli is the sum of the...

 N JYOTHEESWAR one year ago

timulas indivisually it is called super position principle. For all linear systems, the net response at a given place and time caused by two or more stimuli is the sum of the responses which...

 raj one year ago

Hello Gowri In physics and systems theory, the superposition principle , also known as superposition property, states that, for all linear systems, the net response at a given place and time...

what is wave

which have crost and trought is called wave

 KUNCHAM SAMPATH one year ago

a disturbance created in the medium is called wave Waves are said to be an energy transport phenomenon. As a disturbance moves through a medium from one particle to its adjacent particle,...

 Gavvala Ganesh 11 months ago

Waves are said to be an energy transport phenomenon. As a disturbance moves through a medium from one particle to its adjacent particle, energy is being transported from one end of the...

 venky one year ago
What is HUYGENS principle?and explain with your own words??????????????????????/

Gowri sankar,Huygen’s principle states that it is a method of analysis applied to problems of wave propagation both in the far field limit and near field limit.

 SAI SARDAR one year ago

Hello Gowri The Huygens -Fresnel principle states that every point on a wavefront is a source of wavelets. These wavelets spread out in the forward direction, at the same speed as the source...

hellow gowrishankarThe Huygens–Fresnel principle (named after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel) is a method of analysis applied to problems of...

 raj one year ago
what is work energy thereom...................................?

The work-energy theorem is a generalized description of motion which states that work done by the sum of all forces acting on an object is equal to change in that object’s kinetic energy....

 dolly bhatia one month ago

The work W done by the net force on a particle equals the change in the particles kinetic energy KE: W = Δ K E = 1 2 m v f 2 − 1 2 m v i 2 . The work-energy theorem can be derived from...

 Sushmit Trivedi one month ago

For any net force acting on a particle moving along any curvilinear path, it can be demonstrated that its work equals the change in the kinetic energy of the particle by a simple derivation...

 rahul kushwaha 3 months ago
The cieling of long hall is 25 m high What is the maximum horizontal distance that a ball thrown with a speed of 40 ms can go without hitting the ceiling of wall? Plz explain with a DIAGRAM

Let the angle of throwing be Q with respect to the ground So, the range is R = 40*cosQ*t where t = time taken reach ground. Now, we know the time taken to reach the top of its flight is half...

 Tapas Khanda 5 months ago

Let the angle of throwing be Q with respect to the ground So, the range is R = 30*cosQ*t where t = time taken reach ground. Now, we know the time taken to reach the top of its flight is half...

 Tapas Khanda 5 months ago

Diagram is not required to solve this question. You can directly use the formula to find range : R = (v^2/g)*sin2Q Maximum height reached, H = v^2*sin^2Q/2g So, 25 = 40^2*sin^2Q/(2*9.8) So,...

 Tapas Khanda 5 months ago
What harmfull gases are produced when we burn plastics? And can we burn plastics?

Im doing a project, can someone help me, How to reduce those toxic contents when plantic are burnt Like sulphur, nitrogen etc

 2017 years ago

nitrogen gas , sulphur dioxide ,carbon monoxide , carbon dioxide. are some of the gases. well burning plastic is not good for living things. but there are many other things that are more...

 15 hours ago
View all Questions »

• Complete Physics Course - Class 12
• OFFERED PRICE: R 2,600
• View Details
Get extra R 520 off
USE CODE: MOB20

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details

Get extra R 560 off
USE CODE: MOB20

More Questions On Wave Optics