What Do We Mean by the Main- Sequence Turnoff Point

question 71

Multiple Choice

What do we mean by the main- sequence turnoff point of a star cluster, and what does it tell us?

• A)It is the spectral type of the hottest main- sequence star in a star cluster, and it tells us the cluster's age.
• B)It is the point in a star cluster beyond which main sequence stars are not found, and it tells us the cluster's distance.
• C)It is the mass of the most massive star in the star cluster, and it tells us the cluster's size.
• D)It is the luminosity class of the largest star in a star cluster, and it tells us the cluster's age.

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Definitions:

Inferior Good

A type of good for which demand decreases as the income of consumers increases, inversely related to income elasticity.

Demand

The amount of a product or service that consumers are prepared and capable of buying at different price levels over a specific time frame.

Related Goods

Related goods are goods that can either be substitutes or complements to each other, affecting each other's demand and consumption patterns.