The Intensity at a Distance of 6

question 101

Multiple Choice

The intensity at a distance of 6.0 m from a source that is radiating equally in all directions is 6.0 × 10^-10 W/m².What is the intensity level in dB? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)18 dB
• B)23 dB
• C)28 dB
• D)32 dB

---

Definitions:

Timer Parameters

The settings or values that determine the operation of a timer, including its start, duration, and end conditions, critical in timed control operations.

Mechanical Timing Relay

A type of relay that uses mechanical components to delay the actuation of the relay contacts, providing timed control.

Preset Time Interval

A predetermined duration set within timers or clocks in a system, after which a specific action is triggered.

On-Delay Timed Period

A pre-set duration that must elapse after a signal is received before an action is initiated, commonly used in control and automation processes.