Pad 8:46 PM 1. Draw a sketch of the arrangement you will use to project the inte
ID: 1608832 • Letter: P
Question
Pad 8:46 PM 1. Draw a sketch of the arrangement you will use to project the interference pattern on the screen. Include laser, laser beam, slits, and screen 2. Draw another diagram with an enlarged view of the s ts and the screen. Show a laser beam wave front reaching the slide. Are the parts of the wave front that reach the two slits in phase If they are out of phase, determine the phase difference between them 3. Indicate the point on the screen that is equidistant from the two slits. Label this as O. Are the parts of the wave front that reach O from the bottom slit and the top slit in phase? If they are out of phase, determine by how much. Choose another point P on the screen. Are the parts of the wave front that reach P from the two slits in phase If they are out of phase, determine the relative phase difference. Is this determination simplified if you assume that the distance between the slide and the screen is much larger than the distance between the slits? If so, explain 4. What condition must the phase difference meet to produce a bright spot in the interference pattern? Use your diagram to write an expression for the vertical distances (above or below O) to the points where interference maxima should be produced. What condition must the phase difference meet to produce a dark spot in the interference pattern Write an expression for the distances to interference minima. 5. Should the minima (or maxima) be equally spaced from one another? Write an expression for the wavelength of the incident light, in terms of the spacing between minima (maxima) 6. Sketch a graph, showing light intensity vs. position on the screen. Identify positions of interference maxima and minima 7. What should happen to the distances between bright spots if the spacing between the slits is doubled? What should happen if the distance from the slits to the screen is doubled? 89%Explanation / Answer
Interference pattern is produced when two coherent source of light strike a screen. here source of light is laser. two slits helps to produce coherent source of light. the resultant pattern on screen is shown in the figure. It may be noted that width of each fringe remains same and each bright fringe is followed by dark fringe and then bright fringe thereafter. bright fringe is the result of constructive intereference where intensities of each source gets added up whereas dark fringe is the result of destructive interefence in which intensities of each light source oppose each other.
This figure is for q1.
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