The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e., λ1 and λ2 will be

(a) λ1 = 2λ2

(b) λ1 = 4λ2

(c) λ1$\frac{1}{2}$λ2

(d) λ1 =

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