14 e) Given below are some famous numbers associated with electromagnetic radiations in different contexts in physics. State the part of the electromagnetic spectrum to which each belongs.

14.4 keV [energy of a particular transition in ^{57} Fe nucleus associated with a famous high resolution spectroscopic method (Mössbauer spectroscopy)].

Answers (1)

E=14.4 keV

Wavelength(\lambda) = \frac{hc}{E}

=\frac{6.6\times 10^{-34}\times 3\times 10^{8}}{14.4\times 10^{3}\times 1.6\times 10^{-19}}

= 0.85 A0

X-rays

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