Gravitational Lensing

question 3

Multiple Choice

Gravitational lensing

• A)occurs when light passes near a massive object and is deflected by the object's gravitational field.
• B)can be used to determine the luminosity of a galaxy.
• C)occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy.
• D)occurs when the mass of a galaxy is less than expected from the luminosity of the galaxy.
• E)can be used to determine the recessional velocity of a galaxy.

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