What term describes the range between the highest and lowest frequencies in the emitted pulse?

What term describes the range between the highest and lowest frequencies in the emitted pulse?

• A. Quality factor
• B. Impedance
• C. Bandwidth
• D. Pulse duration

Answer: (C)

Bandwidth is the range of frequencies contained in a signal. For an emitted pulse, the spectrum extends from a lowest frequency to a highest frequency, and the difference between those two limits defines the bandwidth. This describes how wide or narrow the pulse’s frequency content is, with shorter, sharper pulses having broader bandwidth and longer pulses having narrower bandwidth. Among the options, bandwidth best fits the idea of the frequency range in the emitted pulse. The other terms refer to different ideas: quality factor describes how selectively a system resonates, impedance is the opposition to current flow, and pulse duration is a time-domain measure of how long the pulse lasts (which, while related to spectrum, does not itself describe the frequency range).

Bandwidth is the range of frequencies contained in a signal. For an emitted pulse, the spectrum extends from a lowest frequency to a highest frequency, and the difference between those two limits defines the bandwidth. This describes how wide or narrow the pulse’s frequency content is, with shorter, sharper pulses having broader bandwidth and longer pulses having narrower bandwidth. Among the options, bandwidth best fits the idea of the frequency range in the emitted pulse. The other terms refer to different ideas: quality factor describes how selectively a system resonates, impedance is the opposition to current flow, and pulse duration is a time-domain measure of how long the pulse lasts (which, while related to spectrum, does not itself describe the frequency range).