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QUESTION
1)- a- in comparison to the point light source,what's the benefit of slit light source ?
1)-
a- in comparison to the point light source,what's the benefit of slit light source ?
b-to observe the interference fringes before splitting the waves,we know that there should all be interference fringes around area where waves superposed. where are the fringes exactly that we observe from the eyepiece? and why?
