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So we can conclude that if red light is replaced by blue light then the width of interference fringes decreases which means fringes come closer to each other.β=dDλ, i.e., β∝λ; the wavelength of blue light is less than that of red light; hence if red light is replaced by blue light, the fringe width decreases, i.e., fringes come closer.As the wavelength of red light is more than that of blue light. So fringe width in case of red light is more than that for the blue light. Thus fringe width increases when we replace the blue light with red light. Hence option 1 is correct.
What will be the effect on the interference fringes when red light is replaced by blue light?
β=dDλ, i.e., β∝λ; the wavelength of blue light is less than that of red light; hence if red light is replaced by blue light, the fringe width decreases, i.e., fringes come closer.
What happens to the fringe width if blue light is replaced with red light?
As the wavelength of red light is more than that of blue light. So fringe width in case of red light is more than that for the blue light. Thus fringe width increases when we replace the blue light with red light. Hence option 1 is correct.
An interference pattern was made by using red light. If the red light changes with blue light, the
Images related to the topicAn interference pattern was made by using red light. If the red light changes with blue light, the
What will be the effect on the interference fringe width if blue light is replaced by yellow light?
Thus fringe width of the fringes formed by yellow light is more than that formed by blue light. Hence the interference fringes become narrower.
Why is the width of interference fringes decrease when the red light is replaced by blue light?
The fringe width and interference will decrease if if the red light it is replaced by the blue light from the source. This is because blue light wavelength is lower and its intensity is is low when compared to red light. As the wavelength of the light is directly proportional to the fringe width of the wave.
What will be the effect if any on the fringe width in YDSE experiment If red light is used in place of violet light?
The wavelength of red light is greater than the wavelength of violet light, so fringe width will reduce. And the consecutive fringes will come closer. Was this answer helpful?
What is the effect on the interference fringes in Young’s double?
(d) As the source slit width increases, fringe pattern gets less and less sharp. When the source slit is so widethen the interference pattern disappears.
How does the fringe width of interference fringes change?
1 Answer. Fringe width, β = Dλ/d => β ∝ λ for same D and d. When the whole apparatus is immersed in a transparent liquid of refractive index n =1×3, the wavelength decreases to λ = λ/n = λ/1.3. so, fringe width decreases to 1/1.3 time.
See some more details on the topic What will be the affected on interference fringes If red light is replaced by blue light? here:
Ch 20. Wave Optics
All interference or diffraction patterns depend upon the wavelength of the light (or whatever wave) involved. Red light has the longest wavelength (about 700 nm) …
What will be the effect on interference fringes If red light is replaced …
So we can conclude that if red light is replaced by blue light then the width of interference fringes decreases which means fringes come closer to each …
What will be the effect of interference?
interference, in physics, the net effect of the combination of two or more wave trains moving on intersecting or coincident paths. The effect is that of the addition of the amplitudes of the individual waves at each point affected by more than one wave.
What happens to the fringe width?
Answer: If the Young’s apparatus is immersed in water, the effect on fringe width will be narrower. The wavelength of light is less in water than in air. Hence, the fringe width will decrease.
How will the diffraction pattern change when yellow light is replaced by blue light the fringe will be?
<br> Since, wavelength of blue colour is less than yellow colour. <br> Therefore, fringe will become narrower.
What is the effect on interference fringes when yellow light?
1 Answer. The fringe width decreases.
How will the diffraction pattern change when yellow light is replaced by blue light of same intensity the fringes will be?
Solution : When blue light is used instead of yellow, `lamda` decreases and hence diffraction bands become narrower.
Interference and diffraction with white Light
Images related to the topicInterference and diffraction with white Light
What are the factors on which the width of the fringe depends?
Answer: The wavelength of light, distance between the slits and the screen or slit separation.
How does the angular separation of interference fringes change?
How does the angular separation of interference fringes change, in Young’s experiment, if the distance between the slits is increased? Therefore, when separation between slits (d) is increased, then fringe width ‘ω’ is decreased since, they have an inverse dependence.
What is the wavelength of red light?
…
The visible spectrum.
| colour* | red |
|---|---|
| wavelength (nm) | 650 |
| frequency (1014 Hz) | 4.62 |
| energy (eV) | 1.91 |
Is the source of light used in a Young’s double slit experiment is changed from red to violet?
In this experiment D and d are not changed only λ is changed. Since the violet has smaller λ than the red light, so the fringe width will decrease. Hence the consecutive fringes will come closer.
What happens to the fringe pattern when the source of light?
We know that the wavelength of violet light is less than that of red light. So the fringe width decreases and the fringes come closer.
What is the position of central bright fringe if you change the wavelength of light in Young’s double slit experiment?
The 0th fringe represents the central bright fringe.
What is the effect on the interference fringes if the monochromatic source is replaced by a source of white light?
Solution : If monochromatic light source is replaced by a source of white light, the interference patterns due to difference component colours of white light will overlap. The central bright fringes for all colours are at same point, hence the central fringe is white. but all other fringes are coloured.
What changes in the interference fringes in Young’s double slit experiment will be observed when I light of smaller frequency is used ii the apparatus is immersed in water?
Answer: In Young’s double slit experiment, the fringe width is given by β=Dλ/d=Dc/dv Clearly, (i) When light of smaller frequency (v) is used, fringe width increases. (ii) Wavelength of light in water decreases, so fringe width (β∝λ) also decreases.
What is the effect on the interference fringes in Young’s double slit experiment if the source slit is moved closer to the double slit plane?
If the source slit is moved towards or closer to the double slit plane then this condition is not satisfied. The value of S decreases and the interference fringes will overlap on one another. Due to this interference pattern will be less sharp and have low intensity.
How does the fringe width in interference pattern vary with the wavelength of incident light?
1 Answer. The fringe width is directly proportional to the wavelength of incident light.
Class 12 Physics | Interference | #28 Use of White Light in YDSE | For JEE NEET
Images related to the topicClass 12 Physics | Interference | #28 Use of White Light in YDSE | For JEE NEET
What is fringe in interference?
interference fringe, a bright or dark band caused by beams of light that are in phase or out of phase with one another.
How does the width of the slits affect the interference pattern?
If we increase the width of the slit, what happens to the central maximum in the diffraction pattern? It gets narrower. This is true for single slits, double slits, and diffraction gratings. The smaller the object the wave interacts with, the more spread there is in the interference pattern.
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