the first minima is obtained at theta = 30. Then the value of a will be

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A slit of width a is illuminated by white light. For red light (lemda = 6500 A), the first minima is obtained at theta = 30. Then the value of a will be
12
Oct
A slit of width a is illuminated by white light. For red light (lemda = 6500 A), the first minima is obtained at theta = 30. Then the value of a will be A slit of width a is illuminated by white light. For red light (lemda = 6500 A) the first minima is obtained [...]
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Tags: A slit of width a is illuminated by white light. For red light (lemda = 6500 A) , the first minima is obtained at theta = 30. Then the value of a will be ,