Using hc = 19.89 × 10⁻²⁶ J m, what is the wavelength of a photon with energy 4.38 × 10⁻¹⁹ J? - DUAL NATURE OF MATTER AND RADIATION Quiz | GKFix.in

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Question

Using hc = 19.89 × 10⁻²⁶ J m, what is the wavelength of a photon with energy 4.38 × 10⁻¹⁹ J?

A. 400 nm
B. 430 nm
C. 454 nm
D. 500 nm