Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich effect causes observed frequency shift as light escapes gravity?
A)Gravitational redshift via equivalence principle✓
B)Doppler shift from frame dragging
C)Cosmological expansion via Hubble's law
D)Refraction due to spacetime curvature
💡 Explanation
Gravitational redshift occurs because the equivalence principle dictates gravity bends spacetime, therefore photons lose energy climbing out of a gravitational well, rather than Doppler shift which requires relative motion.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which consequence results when insufficient dark matter generates unexpected lens curvature?
- Which consequence results when van der Waals forces weaken in molecular packing?
- Which outcome occurs crystal doping diminishes the resistance?
- Which consequence results from an increased rate constant?
- Which effect weakens polyvinyl chloride (PVC) pipes exposed to prolonged elevated temperatures despite static loading?
- Which outcome occurs when a journal bearing operates past design limits?
