The electronic transition in a gaseous atom releases of energy per photon

PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

The electronic transition in a gaseous atom releases 3.35×10−19 J3.35\times10^{-19}\,\text{J} of energy per photon. Fundamental constants (if needed): • c=3.00×108 m s−1c=3.00\times10^{8}\,\text{m}\,\text{s}^{-1} • h=6.626×10−34 J sh=6.626\times10^{-34}\,\text{J}\,\text{s} (a) Calculate the wavelength, in nanometres, of the photon emitted in the transition. Express the answer to three significant figures. (b) Determine the corresponding frequency of the photon. Include appropriate units. (c) State the region of the electromagnetic spectrum to which this photon belongs and justify your choice with reference to your calculated wavelength.

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