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| 1. |
In Young.s double silt experiment the y co-ordinates of central maxima and 10th maxima are 2cm and 5 cm respectively. When theapparatus is immersed in a liquid of refractive index 1.5 the corresponding y co-ordinates will be : |
| Answer» Solution :Fringe WIDTH `beta propto LAMBDA`. Therefore, and hence `beta` will decrease `1.5` times when immersed in liquid. The DISTANCE between central maximum and 10TH maxima is 3 cm in vacuum. When immersed in liquid it will reduce to `(3)/(1.5)= 2cm`. Position of central maxima will not change while 10th maxima will be obtained at y= 4CM. | |