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Question 30772
JEE Physics · Hard

Gravitation: Advanced — Gravitational Lensing MCQ

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Advanced — Gravitational LensingHardQuestion 30772

Question

Light bends around massive objects (gravitational lensing) because:
  1. A
    Light has mass and is attracted by gravity
  2. B
    Spacetime is curved by mass (general relativity)
    Correct
  3. C
    Refraction through the star's atmosphere
  4. D
    Magnetic fields deflect photons

Correct answer

Spacetime is curved by mass (general relativity)

Explanation

In general relativity, mass curves spacetime. Light follows geodesics (straightest paths) in curved spacetime, which appear curved to distant observers. This was first confirmed during the 1919 solar eclipse.

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