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  • Intensity of central bright fringe due to interference of two identical coherent monochromatic sources is I. If one of the source is switched off, then intensity of central bright fringe becomes</p

Intensity of central bright fringe due to interference of two identical coherent monochromatic sources is I. If one of the source is switched off, then intensity of central bright fringe becomes

Option: 1

\frac{1}{2}


Option: 2

\frac{1}{3}


Option: 3

\frac{1}{4}


Option: 4

1


Answers (1)

best_answer

\mathrm{ I=(a+a)^{2}=4 a^{2}, l^{\prime}=(a)^{2}=a^{2}}

\mathrm{ \therefore \frac{I^{\prime}}{l}=\frac{a^{2}}{4 a^{2}}=\frac{1}{4}, \quad I^{\prime}=\frac{1}{4}}.

Posted by

Kuldeep Maurya

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