The Two Lenses Shown Are Illuminated by a Beam of Parallel

question 49

Multiple Choice

The two lenses shown are illuminated by a beam of parallel light from the left. Lens B is then moved slowly toward lens A. The beam emerging from lens B is:

• A) initially parallel and then diverging
• B) always diverging
• C) initially converging and finally parallel
• D) always parallel
• E) initially converging and finally diverging

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Definitions:

Demand-pull Inflation

Inflation that occurs when the demand for goods and services exceeds their supply, leading to an increase in prices.

Demand-pull Inflation

A situation where inflation is caused by an increase in demand for goods and services, exceeding the available supply.

Cost-push Inflation

Inflation caused by an increase in production costs, such as raw materials and wages, which leads to a decrease in the supply of goods and services at the same price levels.

Social Security

A government program that provides financial assistance to individuals who are retired, disabled, or otherwise unable to earn sufficient income through employment.