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Two coherent sources of intensity ratio beta interfere, the (I_(max) - I_(min))/(I_(max) + I_(min)) is: |
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Answer» `(BETA)/(1 + beta)` `therefore I_(max)/(I_(min) = (I_(max) - I_(min))/(I_(max) + I_(min))` ` = ((sqrtI_(1) + sqrtI_(2))^(2) - (sqrtI_(1) - sqrt I_(2))^(2))/((sqrtI_(1) + sqrtI_(2))^(2) + (sqrtI_(1) - sqrt I_(2))^(2))` `(4.sqrtI_(1). sqrtI_(2))/(2(I_(1) + I_(2))` `2sqrt(I_(1) + I_(2))/(I_(1) + I_(2))= 2 sqrt((I_(1))/(I_(2)))/((I_(1))/(I_(2)) + 1) = (2 sqrtbeta)/(beta + 1)` `= (2 sqrt beta)/(1 + beta)` |
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