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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Definitions:

Dilated

The condition of being widened or expanded in diameter.

Dysdiadochokinesia

A neurological condition characterized by the inability to perform rapid, alternating movements.

Rapid Alternating Movements

A neurological test that assesses the ability to perform fast, repeating movements to detect coordination problems.

Astereognosis

The inability to recognize objects by touch alone, often due to damage to the brain's sensory cortex.