Light of two different frequencies whose photons have energies \( 1 \mathrm{eV} \) and \( 2.5 \m...

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