Question

One hertz is a frequency of one cycle per second. Frequencies of radio and television waves are often measured in kilohertz or megahertz. How many hertz are in 400kHz?in 400 kHz the are ___ hertz.

Answer 1

To find:

How many hertz are in 400kHz.

Solution:

It is known that 1kHz = 1000 Hz.

So, 400 kHz = 400 x 1000 Hz = 400000 Hz.

Thus, the answer is 400000 Hz.