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In a biprism experiment, the fringe width is 1.5mm when the eyepiece is 1.2 m from the salt. What will be the fringe width if the eyepiece is moved towards the slit by 0.2m, with no other change in the experimental setup? |
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Answer» Solution :`X_(2)/X_(1)= D_(2)/D_(1)` `therefore` The NEW fringe WIDTH, `X_(2) = D_(2)/D_(1)X_(1)` `=(1.2 -0.2)/(1.2) XX 1.5 = 1.5/1.2 = 1.25` MM |
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