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## 2.2 Frequency Shift in the Gravitational Field - Work done: $W_u = m ⋅ g ⋅ H$ - Energy of a photon: $E = h*f$ - $W_u$: Work - $m$: mass - $g$: Erdbschl - $H$: Height - $f$: Frequence - $E$: Planck'sches WA Beim Aufsteigen eines Laserstrahls im Gravitationsfeld der...

## 2.2 Frequency Shift in the Gravitational Field - Work done: $W_u = m ⋅ g ⋅ H$ - Energy of a photon: $E = h*f$ - $W_u$: Work - $m$: mass - $g$: Erdbschl - $H$: Height - $f$: Frequence - $E$: Planck'sches WA Beim Aufsteigen eines Laserstrahls im Gravitationsfeld der Erde verringert sich die Frequenz, weil er Arbeit verrichten muss. ### Formula $f^` = f ⋅ (1-\frac{g⋅H}{c^2})$ - $f^`$: reduced frequency (in Hz) - $f$: emitted frequency (in Hz) - $g$: acceleration due to gravity (in m/s) - H: height of the Hubhöhe (in m) Experimenteller Nachweis: Robert Pound and Glen Repka (1959) B.S.43