Physics-
General
Easy
Question
For the biprism experiment shown in the figure, the fringe width increases when
- biprism is moved towards the slit
- entire apparatus is submerged in a liquid having R.I. less than that of prism
- a biprism having smaller angle a is used
- the slit width is reduced
The correct answer is: entire apparatus is submerged in a liquid having R.I. less than that of prism
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