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A thin prism P_(1) with angle 4^(@) and made from glass of refractive index 1.54 is combined with another thin prism P_(2) made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of prism P_(2) is |
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Answer» `2.6^(@)` `(4)/(A_(F))=((1.72-1))/((1.54-1))=(0.72)/(0.54) or A_(F) = (4xx0.54)/(0.72)=3^(@)` |
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