Radio waves that vibrate 160,000,000 times per second are used on some train lines for communications. If radio waves that vibrate half as many times per second were used instead, how would the wavelength change?
1 Answer
Jan 12, 2016
New wavelength
Explanation:
Frequency is the number of complete cycles per second.
So
So half this frequency would be
Since radio waves are electromagnetic in nature, they travel at the speed of light
We may use one of the general wave equations to find the corresponding wavelength :
The wavelength would hence be double the value as what it initially was. (Wavelength is the minimum distance between any 2 points which are in phase).