Chemistry · 2014
JEE Main · 12 April 2014, Shift 1 · Q42
Excited hydrogen atom emits light in the ultraviolet region at 2.47 × 10^15 Hz. With this frequency, the energy of a single photon is: (h=6.63 ×…
Excited hydrogen atom emits light in the ultraviolet region at $\displaystyle 2.47 \times 10^{15} \mathrm{~Hz}$. With this frequency, the energy of a single photon is :
$$\left(h=6.63 \times 10^{-34} \mathrm{Js}\right)
$$
Official answer
(3)
$\displaystyle 1.640 \times 10^{-18} \mathrm{~J}$
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JEE Main 2014 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.