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15 August, 16:41

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

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  1. 15 August, 17:06
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    (A) occurs when light passes near a massive object and is deflected by the object's gravitational field.

    Explanation:

    Gravitational lensing occurs when a mass distribution of matter is able to bend the light coming from a source as light travels towards the observer. This effect was predicted by Einstein's general theory of relativity. A galaxy cluster is a mass distribution that acts as a gravitational lens. This effect allows us to see what is behind the sun. As the mass of the sun is very large light curves around the sun.
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Home » Physics » Gravitational lensing ___. (A) occurs when light passes near a massive object and is deflected by the object's gravitational field. (B) occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy.
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