In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. Constructive and destructive interference result from the interaction of waves that 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. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves, gravity waves, or matter waves. The resulting images or graphs are called interferograms.
In a standing wave interference pattern, what distance constitutes a wavelength?
For complete destructive interference, what must be true of the wavelengths and amplitudes of the 2 waves?
Thx
If I use a narrow slit (e.g. two fingers) to view a distant streetlight, I can see an interference pattern parallel to the slit. Doesn't this mean that the photons passing through the slit must be phase coherent? If I am correct about coherence, then how does it occur? The photons leaving the...
Homework Statement
Calculate the fringe width of an interference pattern created by two coherent source, 1mm apart and emitting light of wavelength 600 nm. the pattern is observed on a screen 50cm from the source
Homework Equations
x = dλ/a
The Attempt at a Solution
I don't know how to...
Homework Statement
A laser with wavelength d/8 is shining light on a double slit with slit separation d. This results in an interference pattern on a screen a distance L away from the slits. We wish to shine a second laser, with a different wavelength, through the same slits.
What is the...
Homework Statement
In a two - point in phase inteference pattern, what will happen to the number of nodal lines if the wavelength of the two sources increases? Justify your answer
Homework Equations
Not too sure if an equation is needed to answer this question
The Attempt at a...
Hi, the question was,
"Suppose that the wave represented by the graphs interfered with its OWN reflection.
Sketch one standing wave interference pattern you would expect to observe. On your
sketch, indicate the amplitude of each supercrest and supertrough, and the internodal
distance (using...
Homework Statement
Two small light bulbs are placed close together to try and create an interference pattern. This pattern would not be visible due to the:
a. random phase differences between the light waves from the two sources
b. very high speed of the light waves
c. diffraction of the...
It is said that even if we were to send single electrons through a double slit or a single slit we would see an interference pattern on the screen (as long as we don't setup a detector to tell us which path the electron took).
How do you send SINGLE electrons into a slit? There are electrons...
Homework Statement
The interference pattern on a screen 1.2 m behind a 710 line/mm diffraction grating is shown in Figure P22.45 (http://i137.photobucket.com/albums/q208/infinitbelt/p22-45alt.gif ), in which y1 = 52.3 cm and y2 = 107.6 cm. What is the wavelength of the light?
2. The...
can someone please solve this equation
Monochromatic light with a frequency of 6.50 x 10^14 hz is directed on a diffraction grating ruled with 4.00 x 10^4 lines/m. An interference pattern is produced on a screen 1.10m from the grating. How far is the 1st order maximum from the central maximum?
A tiny spherical bead of steel bead is suspended by a special transparent thread that does not diffract light so that it has no effect on the interference pattern of the bead. Draw to scale the interference pattern created by the bead. The bead has a diameter of 0.13 mm. Include only
the...
Anyone can help me on this one.
A plane wave of wavelength \lambda= 550 nm is incident normally on an opaque screen with three narrow parallel slits separated by distance a= 2.3 mm. An interference pattern is observed on the other side of the screen at a large distance from it.
(a)At what...
Here's the question,
A double slit experiment uses a helium-neon laser with a wvaelength of 633nm and a slit separation of 0.120 mm. When a thin sheet of plastic is placed in front of one of the slits, the interference pattern shifts by 5.50 fringes. When the experiment is repeated under...
Heres the situation,
You have 2 point sources producing circular water waves, in which the phase is adjustable.
The question is In what respects does the interference pattern change and in what respects does it stay constant when the relative phase of your sources changes from 0 degrees to...
Hi, short question.
What would be the effect of 2 sources both transmitting 2 different frequencies if placed in a way that forms an interference pattern.
ie. 2 aerials places parallel X meters apart transmitting in the same direction at 2 different frequencies per aerial.
Sorry if i...