The Periods of Type I Cepheids and Type II Cepheids

question 49

Multiple Choice

The periods of Type I Cepheids and Type II Cepheids are different for stars of the same luminosity. What is the physical difference between these stars that causes the periods to be different?

• A) Type II Cepheids are older, having evolved from Type I Cepheids.
• B) The two types have different metallicities.
• C) Type I Cepheids are members of binary systems, whereas Type II Cepheids are solitary stars.
• D) Type II Cepheids have gone through the helium flash, whereas Type I Cepheids have yet to do so.

---

Definitions:

Seeks to Acquire

The process of actively looking for opportunities to obtain or gain possession of assets, skills, technology, or companies.

Competing Companies

Businesses or organizations that are in the same industry and vie for the same customer base, market share, or resources.

Market Power

The ability of a firm or entity to influence the price, quantity, and other market factors of goods or services, often due to its dominant share or unique position.

Horizontal Merger

A business strategy involving the combination of two or more companies at the same stage of production in the same or different industries.