On what frequency do ships transmit the SOS distress signal if, according to international agreements

On what frequency do ships transmit the SOS distress signal if, according to international agreements, the radio wave length should be 600 meters?

l = 600 meters – the length of the radio wave at which, according to international agreements, it is required to transmit a distress signal (SOS);

c = 3 * 10 ^ 8 m / s – the speed of propagation of radio-magnetic waves.

It is required to determine v (Hertz) – at what frequency the distress signal is being transmitted.

Find the oscillation period of the distress signal radio wave:

T = l / c = 600 / (3 * 10 ^ 8) = 200 * 10 ^ -8 = 2 * 10 ^ -6 seconds.

Then, to determine the frequency, you must use the following formula:

T = 1 / v, from here we find that:

v = 1 / T = 1 / (2 * 10 ^ -6) = 0.5 * 10 ^ 6 Hertz = 0.5 MHz = 500 kHz.

Answer: Ships send a distress signal (SOS) on a frequency of 500 kHz.