Gravitational Lensing Is Caused by the Bending of Light as It

question 112

Multiple Choice

Gravitational lensing is caused by the bending of light as it passes a massive object. Why does gravitational lensing so often involve quasars?

• A) because they are among the most massive objects known
• B) because they are all so far away
• C) because their radiation is narrowly confined to particular regions of the spectrum
• D) because astronomers can observe most quasars up off the galactic plane where they are not obscured by gas and dust

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Seasonally Adjusted

A statistical technique used to remove seasonal variations from data to reveal underlying trends.

Unemployment Rate

The proportion of the workforce that is unemployed and actively looking for work.

Slope

The measure of the steepness or incline of a line, indicating the rate at which y changes with respect to x in a coordinate system.

Nonlinear

Referring to a relationship or process that cannot be accurately described by a straight line, indicating complex interactions.