If the center frequency is 5 MHz and bandwidth is 2 MHz, the quality factor Q is approximately what value?

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Multiple Choice

If the center frequency is 5 MHz and bandwidth is 2 MHz, the quality factor Q is approximately what value?

Explanation:
Quality factor Q measures how selectively the system responds around its center frequency. It’s defined as the center frequency divided by the bandwidth: Q = f0 / BW. Here, f0 is 5 MHz and BW is 2 MHz, so Q = 5 / 2 = 2.5. This means the transducer’s frequency response is moderately selective—higher Q would indicate a narrower bandwidth, while lower Q would mean a broader bandwidth.

Quality factor Q measures how selectively the system responds around its center frequency. It’s defined as the center frequency divided by the bandwidth: Q = f0 / BW. Here, f0 is 5 MHz and BW is 2 MHz, so Q = 5 / 2 = 2.5. This means the transducer’s frequency response is moderately selective—higher Q would indicate a narrower bandwidth, while lower Q would mean a broader bandwidth.

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