Which observation directly confirms the equivalence principle governing gravity?

💡 Explanation

Gravitational lensing, or bending starlight, confirms the equivalence principle because gravity's effect on photons is equivalent to accelerated motion warping spacetime. Wavelight propagation exhibits that curve, showing that the shortest path will no longer be a straight line; therefore confirming A rather than any flat-spacetime prediction.

• Which outcome occurs when non-collimated light illuminates reflective diffraction grating?
• Which mechanism causes increased current leakage when semiconductor transistor gate oxide thickness is reduced below 2nm?
• Which outcome arises when a lithium-ion battery's solid electrolyte interphase (SEI) layer degrades under ionic attack?
• Which risk increases when multiple free-space laser transceivers lack mutual path-length coherence?
• Which consequence occurs when potassium bromide dissolves in water?
• Which consequence results when a converging-diverging nozzle's throat reaches Mach number one?