The distance in pitch between two tones is known as an Interval.
interval
The question doesn't make any sense. If you want to know what the distance between pixels is called, it is dot pitch. If you are asking what the actual distance is, that depends on the monitor. The manufacturer would have this information.
It's called the range of the voice or instrument.
wavelength
The term that describes the distance between any two crests in a transverse wave or the distance between any two rarefactions in a longitudinal wave is called the wavelength.
That is the wavelength.
Yes, the x-distance, y-distance, z-distance, or any combination of the three between any two points may be zero Not possible. If the distance between two points is zero then the points are the same.
wavelength
Wavelength
wavelength
The term that describes the distance between any two crests in a transverse wave or the distance between any two rarefactions in a longitudinal wave is called the "wavelength." It represents the length of one complete cycle of the wave.
wavelength