Which effect is measured, verifying the equivalence principle in gravitational redshift?

💡 Explanation

Gravitational redshift tests equivalence via photons losing energy climbing out of a gravity well. The mechanism is photon 's frequency shift because photons experience a change in observed frequency at different gravitational potential. Therefore the photon frequency changes rather than differing arrival times because of dispersion effects.

• Which effect on aircraft control surfaces occurs when approaching the *critical Mach number*?
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• Which risk increases when a tokamak reaches high plasma density?
• Which outcome is triggered when flow transitions above Reynolds limit?
• Which consequence results when exceeding the Snell's Law limit?
• Which outcome results when computational fluid dynamics (CFD) simulations underestimate mesh Reynolds number?