The energy of an $X$-ray photon of wavelength $1.65\ \mathring{\mathrm{A}}$ is $(h = 6.6 imes 10^{- 34}J$-$sec,\ c = 3 imes 10^{8}ms^{- 1},\ 1eV = 1.6 imes 10^{- 19}J)$

Question

The energy of an $X$-ray photon of wavelength $1.65\ \mathring{\mathrm{A}}$ is $(h = 6.6 	imes 10^{- 34}J$-$sec,\ c = 3 	imes 10^{8}ms^{- 1},\ 1eV = 1.6 	imes 10^{- 19}J)$

Dr. Abubacker · Accepted Answer

(c) $E(eV) = \frac{12375}{1.65} = 7500eV = 7.5\ keV$

Q. The energy of an $X$-ray photon of wavelength $1.65\ \mathring{\mathrm{A}}$ is $(h = 6.6 \times 10^{- 34}J$-$sec,\ c = 3 \times 10^{8}ms^{- 1},\ 1eV = 1.6 \times 10^{- 19}J)$

Explanation

Reviewed by Dr. Abubacker

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