For the graph shown, If \( f \) denotes frequency of incident light (a) \( f_{A}f_{B}f_{C} \) (b...

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For the graph shown,
If \( f \) denotes frequency of incident light
(a) \( f_{A}f_{B}f_{C} \)
(b) \( f_{A}f_{B}f_{C} \)
(c) \( f_{A}=f_{B}=f_{C} \)
(d) \( f_{B}f_{C} \) and \( f_{B}f_{A} \)
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