It's called the "Wavelength". It corresponds to <span>the distance from any point on a wave to an identical point on the next wave and could also be from crest to crest or trough to trough.
Hope this helps !
Photon</span>
Answer: 4 x 106
That’s how you write forty million in scientific notation.
Hypothesis testing is basically testing the results of a experiment to see weather your results are valid or not.
Answer:

Explanation:

Round to three significant digits

Amplitude is a measurement of the magnitude of displacement (or maximum disturbance) of a medium from its resting state, as diagramed in the peak deviation example below (it can also be a measurement of an electrical signal's increased or decreased strength above or below a nominal state).