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3 years ago

PLEASE HELP ME WITH THIS ONE QUESTION

Physics

1 answer:

Cerrena [4.2K]3 years ago

4 0

Answer:

3.11ev

Explanation:

$E = hf$

$E = 6.626 * 10^-^3^4 * 7.5 * 10^1^4\\E = 49.695 * 10^-^2^0$

$1ev = 1.60 * 10^-^1^9\\xev = 49.695 * 10^-^2^0 / 1.60 * 10^-^1^9\\xev = 3.1059\\xev = 3.11eV$

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-------------

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