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LenKa [72]
3 years ago
14

PLEASE HELP ME WITH THIS ONE QUESTION

Physics
1 answer:
krok68 [10]3 years ago
5 0

Answer:

The correct option is D.

Explanation:

The wavelength of the photon can be calculated with the following equation:

E = h\frac{c}{\lambda}

Where:

E: is the energy of the photon = 2.90 eV

h: is the Planck's constant = 6.62x10⁻³⁴ J.s

c: is the speed of light = 3x10⁸ m/s

λ: is the wavelength

Hence, the photon's wavelength is:

\lambda = \frac{hc}{E} = \frac{6.62 \cdot 10^{-34} J*s*3.0 \cdot 10^{8} m/s}{2. 90 eV*\frac{1.6 \cdot 10^{-19} J}{1 eV}} = 428 nm

Therefore, the correct option is D.

I hope it helps you!

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