Spectral Classification of a Star into the Lettered Categories, O

question 213

Multiple Choice

Spectral classification of a star into the lettered categories, O, B, A, F, G, K, and M is carried out by

• A) finding the wavelength of peak emission in the continuum spectrum of the star.
• B) determining the relative mass of the star by the study of binary star motions, in order to place it into its proper mass classification.
• C) determining the total energy emitted at all wavelengths by the star, taking account of the full spread of wavelengths and their distances, in order to place the star into its luminosity class.
• D) examining the relative amounts of absorption caused by various neutral and ionized atoms in a stellar spectrum.

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Definitions:

Short-Term Pricing Decisions

Pricing strategies and choices made by a business to address immediate market demands, competitive pricing, or product lifecycle stages.

Total Variable Costs

The sum of all costs that vary directly with the level of production or sales volume, such as materials and labor costs.

Variable Costing Income Statement

An income statement format that only includes variable costs as cost of goods sold and uses contribution margin to analyze profitability.

Absorption Costing Format

An accounting method that includes all manufacturing costs - direct materials, direct labor, and both variable and fixed manufacturing overhead - in the cost of a product.