By What Means Do We Perceive the Pitch of a Low-Frequency

question 101

Multiple Choice

By what means do we perceive the pitch of a low-frequency sound, such as 30 Hz?

• A) Sound waves of a particular frequency excite hair cells at a particular location along the basilar membrane.
• B) A sound wave of a particular frequency (such as 30 Hz) excites exactly that number of hair cells (30).
• C) Each sound wave excites a group, or volley, of hair cells.
• D) Each hair cell sends one impulse for each sound wave.

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Definitions:

Precludes

Prevents from happening; makes impossible.

Conflicting Investment

Investments that present opposing outcomes or decisions in a portfolio, often leading to a prioritization decision for optimal allocation.

NPV Rule

A principle stating that an investment should be made if its net present value is positive, as it's expected to add value to the firm.

IRR Rule

A decision-making tool used in finance to evaluate investments, stating that a project is acceptable if its internal rate of return exceeds a predetermined threshold.