Light of two different frequencies whose photos have energies 1 and \( 2.5 \mathrm{eV} \), respe...

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Light of two different frequencies whose photos have energies 1 and \( 2.5 \mathrm{eV} \), respectively, successively illuminate a metal whose work function is \( 0.5 \mathrm{eV} \). The ratio of the maximum speeds of the emitted electrons will be
(A) \( 1: 5 \)
(B) \( 1: 2 \)
(C) \( 1: 4 \)
(D) \( 1: 1 \)
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