Ace the Davies SPI 2026 Challenge – Score Big and Shine!

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A pulse repetition frequency of 12 kHz is equal to which numeric frequency?

12 Hz

120 Hz

12,000 Hz

Pulse repetition frequency is the number of pulses emitted every second. When you see 12 kHz, that means 12 thousand pulses per second. Since kilo means thousand, convert to hertz: 12 × 1000 = 12,000 Hz. So the numeric frequency is 12,000 Hz. The other values would be much smaller (12 Hz or 120 Hz) or much larger (120,000 Hz) than 12 kHz.

120,000 Hz

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