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In Young's double-slit experiment, coordinate system is selected in such a manner that Y-coordinate of central maximum is 1cm and the same for 9^(th) maximum is 9 cm. If the entire set-up is immersed in a fluid with refractive index 4/3, then what will be new Y-coordinates of central maximum and 9^(th) maximum? |
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Answer» 1 CM , 9 cm Further we know that wavelength becomes `lambda//MU` on immersing in liquid and hence fringe width will also be divided by `mu` because fringe width is proportional to `lambda`. Similarly DISTANCE between `9^(th)` maximum and central maximum which is 8 cm will also be divided by `mu`. Hence new Y-coordinate of `9^(th)` maximum can be written as follows: `Y = 1 + (9 -1)/(4//3) = 7 cm`. |
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