A Vibrating Tuning Fork of Frequency 640 Hz Is Held

question 59

Multiple Choice

A vibrating tuning fork of frequency 640 Hz is held above a tube filled with water.Assume the speed of sound to be 330 m/s.As the water level is lowered,consecutive maxima in intensity are observed at intervals of about

• A)12.9 cm
• B)19.4 cm
• C)25.8 cm
• D)51.7 cm
• E)194 cm

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Definitions:

Absorption Costing

A bookkeeping approach that incorporates all production costs, including both fixed and variable expenses, into the pricing of a product.

Variable Costing

An accounting method that accounts only for variable production costs (direct materials, direct labor, and variable manufacturing overhead) in product cost calculations, excluding fixed manufacturing overhead.

Unit Product Cost

The complete expense incurred to manufacture a single item, encompassing materials, workforce, and indirect costs.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs.