Seconds
frequency
Distance from one crest to the next crest of a wave.
Capture the sound with a microphone, feed its output into an oscilloscope with a calibrated timebase. Measure the time period T of the wave on the horizontal axis, then convert it into a frequency ( = 1/T)
speed= frequency x wavelength
The details depend on what type of wave you are talking about, and what exactly you want to measure about the wave.
Seconds
You will have to measure it.
is there a scale used to measure the intensity of heat wave
Just divide the wavelength by the wave period, and you've got the wave speed.
frequency
Distance from one crest to the next crest of a wave.
T
Amplitude period Rise Time (square wave) Fall Time (Square wave) Duty-Cycle (Square Wave)
Capture the sound with a microphone, feed its output into an oscilloscope with a calibrated timebase. Measure the time period T of the wave on the horizontal axis, then convert it into a frequency ( = 1/T)
A sound wave is an example of a longitudinal wave. A device used to measure the length and pitch of the sound wave is call a oscilloscope.
A wave length.
The reciprocal of the period of ANY wave is the wave's frequency.