Why Are Telescopes Sometimes Called "Time Machines

question 62

Multiple Choice

Why are telescopes sometimes called "time machines"?

• A)because the author,H.G.Wells,used the term to describe telescopes in a book
• B)because some of the oldest telescopes are still in use today
• C)because observations of distant objects reveal them as they were in the past
• D)because astronomers can use telescopes to see the Milky Way as it was when it was much younger
• E)It's a journalistic misnomer: you cannot travel into the past or the future.

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Definitions:

Capital Market Line

A line that depicts the risk-return trade-off for efficient portfolios, showing the relationship between expected return and risk in the capital market.

Regression Techniques

A set of statistical processes for estimating the relationships among variables, commonly used for prediction and forecasting in finance and economics.

Slope Coefficient

A measure that indicates the rate at which a dependent variable changes in relation to an independent variable, often used in linear regression analysis.

CAPM

Capital Asset Pricing Model, a theory that delineates the correlation between expected return on investments and the inherent systematic risk, especially in the context of equities.