Wave interference and Young's Double Slit Experiment by Arning R. Wulandari

Diandra

2017-08-29 01:19:43 UTC

Based on yesterday's discussion I learned that there are two types of interference; constructive and destructive interference. To get maximum displacement, we need to get the value of the constructive interference while minimum interference can be achieved through the value of destructive interference. Not only that, we also learned about the principle of the superposition in which displacement of waves in the same medium is the sum of all waves. Following right after, we also studied about the Young 's Double Slit. This is where two waves interfere with each other and will somehow create alternating bright and dark spots on the projected screen. There are 2 formulas in this particular topic; finding the maximum and minimum interference

Interference max:
dp/l = mλ
Interference min:
dp/l = (2m -1) 1/2λ
Where d is the distance between slits, l is the distance from slits to the screen, m is the "orde garis terang" while λ is the wavelength.

Michelle

2017-08-29 01:20:24 UTC

From yesterday's discussion, I learned about the wave theory of light, which encompasses diffraction and interference. Wave interference specifically is the combined effect of the disturbance caused by each individual wave at the same place and time. This phenomenon can also be known as superposition when the waves travel through the same medium simultaneously. The resultant displacement at any given point is the vector sum of the displacement. This can be written as R= Y1 +Y2. If the amplitude of the waves are the same, then Y1=Y2. There are two types of interference; constructive is when we obtain the maximum displacement while destructive is the other way around. Wave interference is perceptible in the Young's Double Slit Experiment. The Young's Double Slit Experiment allows waves to pass through gaps. In result, the diffracted waves interfere with each other and when projected onto a screen creates bright and dark spots, repeated vertically. The components of the experiment comprise the fringe size (this is also the distance of the light line to the centre, p), the wavelength (λ), the distance from the gap to the screen (l) the split separation (d), and order value (m). To find the maximum interference, the formula dp/l=mλ can be used. To find the minimum interference, the formula dp/l= (2m-1)0.5λ

Marcel

2017-08-29 01:20:38 UTC

From the discussion we had yesterday, i learned about interference. It is the combined effect of disturbance caused by each individual waves at the same place and time, there are two types of interference which are constructive and destructive. Constructive interference will result in maximum displacement while destructive interference will result in minimum displacement.

The principle of superposition is when two or more waves travel through the same medium simultaneously, the resultant displacement at any point is the sum of the displacement by individual waves. The formula for superposition is [R= Y1 + Y2]

Young's double slit is an experiment conducted by Thomas Young that shows that when light passes through a gap, it will create dark and bright spots.

Maximum interference formula:
dP/ℓ=mλ

Minimum interference formula:
dP/ℓ=(2m-1)1/2ℓ

Bryan

2017-08-29 01:20:42 UTC

Interference is the disturbance caused by the each individual wave at the same place and at the same time as well. From two waves, it'll combined with each other in one wave with the sum of the amplitude of both waves. There are 2 types of interference. The first one is the constructive one which will result a maximum displacement and the second type is the destructive interference which will result a minimum displacement. Also, we've learnt from yesterday's discussion that the principle of superposition is when two or more waves travel through the same medium simultaneously.
The formula for superposition is
R=Y1+Y2

Young's Double Slit Experiment
Young's double slit experiment is an experiment made by Thomas Young, related to interference as well. The experiment itself is a light passing through a slit and it'll pass two slits after previously only passing through one slit. It'll interfered each other after passing two slits.
Formula:
max. interference:
dp/l = m.λ
min. interference:
dp/l = (2m-1)1/2λ

Elbert

2017-08-29 01:20:46 UTC

Wave interference
From yesterday's lesson i understood that wave interference is when 2 wave superpose to either become one wave with either greater or lower amplitude than both waves depending on the phases of the wave. A greater amplitude result is also called as maximum displacement while a lower amplitude result is known as a minimum displacement. 2 waves being in phase mean that they are both either crest or both are trough. The total amplitude will be the amplitude of each wave added together.

Young's double slit
Young's double slit experiment shows that when 2 waves interfere with each other through 2 different slits but from 1 source there will be alternating light and dark spots due to the wave interference. When the light from the source passes through the 2 slits they diffract and interfere with each other on the screen that the light will be shown on. Constructive and destructive interference occur causing bright and dark spots. The factors that affect the result is the wavelength, distance between slits, size of slits, distance from slits to screen.

Andrew

2017-08-29 01:21:02 UTC

2 types of interference: constructive and destructive. constructive interference will cause maximum displacement and destructive will cause minimum displacement. In order for it to happen, the waves must have the same frequency and amplitude.

Principle of super position
resultant displacement=vector sum of displacement due to individual waves
R=Y1+Y2

Young's double slit
two waves that interfere with each other when passed through a two slits; creates dark and bright spots when projected to a screen. Takes account of fringe size, wavelength, distance between gap and screen, slit separation, order value.
Formula: dP/l=m.λ

Annisa

2017-08-29 01:21:11 UTC

I learned about light wave theory. Interference of wave happened and there are two types of interference; constructive and destructive. Constructive interference is when the two waves have the same phase (crest meets crest) joined together making the result of the wave have a bigger amplitude. The other interference is destructive, where one wave is canceled out by the other.

Young's Double Slit:
Young's double slit is related to the interference of waves. Young experimented a light passing through two slits in which interference of the light occur. The light then lied on a screen where there are bright and dark spots. The interference cause the screen to have a dark and bright spots. The bright spot is also known as the maximum interference, while the dark spot is also known as the minimum interference.

Kenneth J

2017-08-29 01:22:02 UTC

From yesterday's lesson, I've learned that there are two types of wave interference which are constructive interference and destructive interference. Interference itself is defined as the combined effect of the disturbance caused by the each individual wave at the same place and the same time. Constructive interference is when two or more waves flowing at the same frequency and phase, resulting a single amplitude equal to the sum of the amplitudes of the individual waves. While destructive interference works the other way around, it is when two or more waves flow at the same frequency but with an opposite phase.

Young's double slit is when waves pass through a gap (diffraction), cause the waves to interfere and resulting a light and dark spot.

Joe Nick

2017-08-29 01:22:14 UTC

Interference is a process that happens when two waves of the same frequency and amplitude combined each other – mainly referred to as a disturbance caused by each individual wave. There are two types of waves, constructive and destructive. Constructive interference is when there is a maximum displacement, while destructive interference is when there exists to be a minimum displacement. A crest and through makes a destructive interference, while a crest and crest makes a constructive interference. And if the waves travel at the same medium simultaneously, it means the waves are in superposition. Meaning that Y = Y1 = Y2.

Max Interference:
dp/l = mλ

Min interference:
dp/l = (2m-1) . 0.5λ

The resultant displacement at any point is the vector sum of the displacement, which could be represented with the equation of:
R = Y1 + Y2

Furthermore, when these disturbances occur from the constructive and destructive interference, from a filter paper, you can see bright and dark spots.Young tried this, and this is what made it called Young's Double Split Interference. The bright spots can be seen as the red spots in the filterpaper while the dark spots represent the white spots in between (referring to the image below).

Marcell

2017-08-29 01:22:19 UTC

From the last discussion that we had, I learned about interference which is the combined effect of the disturbance caused by each individual wave at the same place and time. The two types of interference which are the constructive and destructive. Constructive is when the crest is added with the crest or the trough added with the trough and the result is the constructive interference. On the other hand, destructive interference is when the crest is added by the trough which results the destructive interference.

Young's Double Slit
The double slit experiment shows when a wave passes through one slit then it will pass on two slits and create an interference from the diffraction of the two slit.

Formula
dp/l = m x lambda

Renjiro

2017-08-29 01:23:29 UTC

In yesterday's lesson i learned about interferences

Interference
interference is when two waves combine at the same place and time. There are 2 types of interferences: the first, constructive interference that causes maximum displacement and the destructive wave that causes minimum displacement.

Young's double slit experiment
Young's double slit experiment shows that when a wave of light passes through two slits and the 2 light waves diffract and interfere with each other and reaches a screen, constructive and destructive interference happens and create dark and bright spots.

Hansel

2017-08-29 01:23:34 UTC

Yesterday's discussion contains an information about 2 types of interference, which is constructive and destructive. When two waves come close to one another, their effects add together. If the crests or highest parts of the waves, line up perfectly, the the crest of the combined wave will be the sum of the heights of the two original crests. Likewise, if the lowest parts of the waves (the trough) line up just right, then the combined trough will be the depth of the two original troughs combined. This is known as constructive interference, in which two waves (of the same wavelength) interact in such a way that they are aligned, leading to a new wave that is bigger than the original wave.

Young double slit experiment is made by Thomas Young, this experiment is related to the interference too. This experiment is about light passing through a slit and the light will continue to pass through two slits after the previous light can only go through one slit. It will interfered each other after going through the second slit.

Bismo Asyura Widianto

2017-08-29 01:23:43 UTC

In the 21st century, it is vital for us millennials to understand how a number of phenomenons can happen. In our previous lesson, i learnt about young's double split experiment. and interference.

Interference occurs when two waves impede/meet one another at the same moment in time which may produce 2 types of interference; constructive and destructive. Moreover, we studied the effects that the interference may produce.

Young's Double Slit Experiment
This experiment shows that when a light wave pass through a gap, it will interfere with each other.

Faustine (Ara)

2017-08-29 01:23:43 UTC

From the previous lesson on Physics I had learned about the wave interference as well as the Young's Double Slit Experiment.

Wave Interference
Based on the video the class watched yesterday, it is stated that interference is the combined effect of the disturbance caused by the each individual wave at the same place and at the same time. Interference occurs when two electromagnetic waves combined to form a resultant wave in which the displacement is either reinforced or cancelled. Which makes up two types of interference; Destructive and Constructive. If two amplitudes have opposite signs, they will subtract to form a combined wave with lower amplitude, this is called as the destructive interference.

Also, the interference of waves is the physical effect of the superposition of waves from the source, vibrating with the same frequency and amplitude is called as the interference of waves. The physical effect is in the form of vibration in the amplitude of of resultant wave in a given portion of the medium.While the principle of superposition is when two or more waves travel through the same medium simultaneously, the resultant displacement at any point is the vector sum of the displacement due to the individual wave.
Formulas:
Maximum Interference:

Young's Double Slit Experiment
In 1801, Thomas young demonstrated successfully the interference of light by performing a double slit experiment. Young allowed sunlight to pass through a hole and then at some at some distance through two pin holes. When light was received on a screen, an uneven distribution of light intensity was observed on the screen. A number of alternate dark and bright spots were seen on the screen.

Revan

2017-08-29 01:23:54 UTC

Wave interference happens when two or more waves travel in the same direction. It has a formula of y1+y2 = r which means that the maximum point of the superposition is the sum of both crest of the wave and the minimum point is the sum of the trough of both waves. Based on the video I saw yesterday, I learn that when light passes through a small gap, the light will then be diffracted. In the Thomas Young's double slit experiment, he placed a double slit in order to see the result of the diffractions of two waves. As seen in the video, when the two waves interfere with each other, the area of the interference will be brighter. Therefore, when it is brighter, it has maximum displacement. While when it is darker, it has minimum displacement. To prove this, he placed a screen to observe the light. The screen showed an alternation of dark and bright with a centre point called (terang pusat) in bahasa Indonesia. The distance from bright to dark is 1/2 and the distance between dark-dark and bright-bright is 1. There is also a destructive interference. When the two waves are not in phase, they create a destructive interference. In this kind of interference, the crest of the first wave meets the trough of the second wave. Therefore, they cancel out each other leaving minimal displacement. The formula for this will be y1 - y2 = r

Marsya

2017-08-29 01:23:59 UTC

Yesterday, I learned that interference happens when two waves meet one another at the same place and at the same time. There are two types of interference: constructive interference and destructive interference. In constructive interference, maximum displacement happens whereas in destructive interference, minimum displacement happens. Frequency and amplitude affects interference. I also learned the principle of superposition which states when 2 or more waves travel through the same medium simultaneously, the resultant displacement at any point is the vector sum of the displacement due to individual waves. Young's Double Slit experiment is when a source produces waves that pass through two slits. As they pass through the two slits, the waves will then diffract. When the diffract on the other side, the two diffracted waves would interfere with one another and create bright and dark spots on a screen.

Mario

marioramiro08 — 2017-08-29 01:24:11 UTC

2 types of interference:
when two waves interfere each other and the crest from one wave interfere with the crest from another wave, it will cause constructive interference which will cause the maximum displacement. When the crest from the first wave interfere with the trough from the second wave, it will cause destructive interference which will cause the minimum displacement. In order for interference to happen, the waves must have the same frequency and amplitude.

When a light wave enter two gaps, it will diffract and result in two waves. when both of the diffracted waves interfere each other, the light will be brighter which means that the brighter one will be having the maximum displacement. On the other hand, when the light does not interfere each other, it will be darker. Therefore, it has the minimum displacement

Steven.S

2017-08-29 01:24:21 UTC

Interference is the combined effect of the disturbance caused by the each individual at the same place at the same time. There are 2 types of interference which are constructive and destructive. Constructive interference will create maximum displacement while destructive interference will create minimum displacement.

I remember that it was the formed by 2 diffracted waves. And after that there will be a screen. This experiment was conducted by Thomas Young in 1801.

Maximum Interference:
dp/ℓ = m.λ

Minimum Interference:
dp/ℓ = (2m-1). 0.5λ

James

iamjamesjeremy — 2017-08-29 01:24:34 UTC

Yesterday's discussion is primarily about light wave interference, which is the combined effect of disturbance caused by two waves converging at a same place at the same time as well as young's double slit experiment.
There are two types of wave interference - Constructive, and Destructive. Constructive interference allows maximum displacement to take place while Destructive interference on the other hand, has minimal displacement
Principle of superposition states that when two or more waves travels on the same medium simultaneously(together), the displacement at any point would be the vector sum of the displacement due to each individual waves
Young's double slit experiment is an experiment conducted by shining a light into a series of slits that contains light and dark spots. The experiment would showcase the diffraction and interference of light wave
Principle of Superposition

Ganesh Afif P

ganesafif — 2017-08-29 01:24:41 UTC

From Yesterday's lesson, i learn that there are 2 types of wave interference which were constructive wave and destructive wave.

Constructive wave, which occurred when two waves interfere within each other in the same point of peak which then cause it to increase in amplitude or known as the maximum displacement.

Destructive wave, where the wave interfere with each other in different peak therefore causing the resultant wave to decrease and causes minimum displacement.

Young's Double slit experiment is when light wave pases through a hole in a layer which causes the light to diffract and interfere within each other.

Ale

alessandro_airlangga — 2017-08-29 01:24:44 UTC

Interference of wave caused by the each individual wave at the same place and time. There are 2 types of interference which are constructive and destructive. Constructive interference happens with maximum displacement, whereas destructive interference happens with minimum displacement.
We also learned about Thomas Young's experiment which resulted two formulas

dp/l = m x λ for the maximum interference
dp/l (2m-1) x 0.5 λ for the minimum interference.

Young's double slit experiment is where a light wave goes through the two slits and they diffract and interfere with each other.

Farhan

2017-08-29 01:25:03 UTC

Interference is where two waves cross path. This can only happen when both waves are in the same amplitude and frequency. The physical effect of this interference is a maximum and a minimum displacement, where maximum is two waves in the same phase cross path and the wave displacement is added resulting in a maximum displacement. Minimum is when the waves are not in the same phase, so the effect is the displacement of both wave are subtracted instead of being added.
Maximum displacement:
Y = y1 + y2
Minimum displacement:
Y = y1 - y2
*y as in the displacement of the wave
Maximum displacement is also called as constructive interference and minimum displacement is also called as destructive interference

Double slit is where a light wave goes through two small slits and projected into a screen. This have a profound effect on the light, where it shows light and dark areas on the screen. The effect is caused by the wave created by the two slits to interfere with each other and causing the construrctive and destructive interference to happen.

Abhirama

2017-08-29 01:30:52 UTC

From Yesterday's lesson, I learned that wave interference is the result of 2 wave that cross path. The 2 waves superpose to create a wave with a greater amplitude or a lower ampliude. There are two types of interference, which is constructive interference and destructive interference. When a greater amplitude is created, we can call it the maximum displacement (constructive) . When a lower amplitude is created, it will be called minimum displacement(destructive). Young's double slit experiment showcases how when 2 waves from 1 source interfere with each other through 2 different slits, there will be light and dark spots, which is caused by wave interference.