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← ScienceWhich phenomenon causes gravitational lensing, in which light bends around a massive compact stellar object?
A)Spacetime curvature by mass-energy density✓
B)Refraction through the stellar atmosphere
C)Quantum entanglement of photons emitted source
D)Doppler shift of the approaching receding light
💡 Explanation
Spacetime curvature bends light according to general relativity around massive objects, because the extreme gravitational field affects the path of photons. Therefore, light bends rather than travelling in straight lines because refraction requires a medium in the direct path from the source to observer.
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