In a Young's experiment,when $n$ coherent sources of equal intensity $I_0$ are used,the resultant intensity is $I_1$. When $n$ incoherent sources of equal intensity $I_0$ are used,the resultant intensity is $I_2$. What are the values of $I_1$ and $I_2$?
- A$n^2 I_0, n I_0$
- B$n I_0, n^2 I_0$
- C$n I_0, I_0$
- D$n^2 I_0, (n-1) I_0$
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