Why Did Einstein Introduce His Cosmological Constant into the Original

question 49

Multiple Choice

Why did Einstein introduce his cosmological constant into the original equations for general relativity?

• A) The constant was necessary to make the solutions describe an expanding universe.
• B) Experimental evidence at this time (before Hubble) suggested a static universe, and this constant was required to produce static solutions.
• C) The constant represented the acceleration of gravity near Earth's surface, and it was necessary to make the nonrelativistic limit of the solutions compatible with Newton's results.
• D) The constant represented the speed of light, and its inclusion was necessary to produce solutions that were compatible with the postulates of special relativity.

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Definitions:

Derived Demand

Demand that is not for the goods or services themselves but results from the demand for another good or service.

Independent Demand

The need for finished products or goods that does not depend on the demand for other items.

Causal Model

A conceptual model that describes the causal mechanisms and relationships between variables within a system.

Deterministic Model

A mathematical model in which outcomes are fully determined by parameter values and initial conditions, with no randomness involved.