1) A beam of monochromatic light is aimed at a slit of width w and forms a diffr
ID: 1776032 • Letter: 1
Question
1) A beam of monochromatic light is aimed at a slit of width w and forms a diffraction pattern. In which case is the width of the central band greater? When the incident light is blue When the incident light is yellow same in both cases, blue and yellow Submit You currently have 0 submissions for this question. Only 2 submission are allowed You can make 2 more submissions for this question Survey Question) 2) Briefly explain you r answer to the previous question. Submit You currently have 0 submissions for this question. Only 2 submission are allowed. You can make 2 more submissions for this question 3) Beams of blue and yellow light are both aimed at the same slit of width w at the same time. Which of the following features of the diffraction pattern changes relative to the single monochromatic beam case? a) Color of the central bright fringe only b) Color of all bright fringes c) Location of dark fringes Only a) and b) Only a) and c) Only b) and c) Alla), b) and c) Submit You currently have 0 submissions for this question. Only 2 submission are allowed. You can make 2 more submissions for this question Survey Question) 4) Briefly explain you r answer to the previous question. Submit You currently have 0 submissions for this question. Only 2 submission are allowed You can make 2 more submissions for this questionExplanation / Answer
1) Yellow.
2) The reason is for a diffraction pattern to be formed, the slit width should be small in comparison to the wavelength of the light, therefore for the same slit width, a larger wavelength over a small slit width will have a larger spread, therefore, bigger central band.
3) (a) and (c)
4) It is clear that the color of the central bright fringe would change, since the color with larger wavelength will have a larger spread over the color with smaller wavelength and at the center, they overlap to produce other colors. The same is true for the location of dark fringes they would change because of different wavelengths.
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