IB Physics HL E 3 17 Hl Discrete Nuclear Energy Levels Questions

Use HL alpha and gamma energy spectra to identify evidence for discrete nuclear energy levels and distinguish continuous beta emission.

Exam points

Alpha and gamma spectra show discrete nuclear energy levels.

[Maximum number: 2]

Rhodium-106 $\left({ }_{45}^{106} \mathrm{Rh}\right)$ decays into palladium-106 $\left({ }_{46}^{106} \mathrm{Pd}\right)$ by beta minus $\left(\beta^{-}\right)$ decay. The diagram shows some of the nuclear energy levels of rhodium-106 and palladium-106. The arrow represents the $\beta^{-}$ decay.

Figure for Question IB Physics HL E 3 17 Hl Discrete Nuclear Energy Levels Questions question 1 — IB Physics HL

Calculate the wavelength of the gamma ray photon in (d)(ii).

Photon energy

$\begin{aligned} E&=0.48\times10^6\times1.6\times10^{-19}=7.68\times10^{-14}\ \mathrm{J}\\ \lambda&=\frac{hc}{E}=\frac{6.63\times10^{-34}\times3\times10^8}{7.68\times10^{-14}}=2.6\times10^{-12}\ \mathrm{m} \end{aligned}$

All question bank results loaded

IB Physics HL E 3 17 Hl Discrete Nuclear Energy Levels Questions question 1