Gravitational Lensing Is Caused by ____

question 60

Multiple Choice

Gravitational lensing is caused by ____.

• A) refraction of light through hot intracluster gas
• B) stimulated emission of light passing through dark matter
• C) acceleration of photons by supermassive black holes
• D) scattering of photons off of thin intergalactic dust
• E) bending of light rays due to the curvature of space-time around a mass

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Definitions:

Syntax

The set of rules, principles, and processes that govern the structure of sentences in a given language, especially the order of words and phrases.

Grammar

The set of linguistic rules governing the composition of phrases, clauses, and words in any given natural language.

Phonemes

The smallest units of sound in a language that can distinguish one word from another.

Morphemes

The tiniest units of grammar in a language that have semantic value.