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  • In Young's double slit experiment, interference pattern is found to have an intensity ratio between bright and dark fringes as 9 . Then amplitude ratio will be<stron

In Young's double slit experiment, interference pattern is found to have an intensity ratio between bright and dark fringes as 9 . Then amplitude ratio will be

Option: 1

1


Option: 2

2


Option: 3

9


Option: 4

3


Answers (1)

best_answer

\mathrm{a_{\text {max. }}=a_{1}+a_{2} ; \quad a_{\text {min. }}=a_{1}-a_{2}}

\mathrm{\therefore \frac{I_{\text {max. }}}{I_{\text {min. }}}=\frac{\left(a_{1}+a_{2}\right)^{2}}{\left(a_{1}-a_{2}\right)^{2}}=\frac{9}{1} \Rightarrow a_{1}=2 \text { and } a_{2}=1}

\mathrm{\therefore \frac{a_{1}}{a_{2}}=\frac{2}{1}=2}

Posted by

Kuldeep Maurya

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