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Light of wavelengths \( \lambda_{A} \) and \( \lambda_{B} \) falls on two identical metal plates \( A \) and \( B \) respectively. The maximum kinetic energy of photoelectrons is \( K_{A} \) and \( K_{B} \) respectively, then which one of the following relations is true? \( \left(\lambda_{A}=2 \lambda_{B}\right) \)
(a) \( K_{A}\frac{K_{B}}{2} \)
(b) \( 2 K_{A}=K_{B} \)
(c) \( K_{A}=2 K_{B} \)
(d) \( K_{A}2 K_{B} \)
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