Question

1. a frequency of 25 khz is equal to

a 25 hz

b 250 hz

c 0.025 hz

d 25,000 hz

Explanation:

Step1: Recall the conversion factor

The prefix "kilo -" (k) means 1000. So 1 kHz = 1000 Hz.

Step2: Convert 25 kHz to Hz

To convert 25 kHz to Hz, we multiply 25 by 1000. So 25 kHz=25×1000 Hz = 25000 Hz.

Answer:

D. 25,000 Hz