nerve signal
An atom that undergoes excitation and de-excitation emits photons of light. When an electron in an atom absorbs energy and moves to a higher energy level (excitation), it eventually returns to its original state (de-excitation) and emits a photon of light corresponding to the energy difference between the two levels.
The bending of a wave entering a new medium occurs because the wave changes speed when it goes from one medium to another, causing the wavefront to change direction. This change in speed leads to refraction, where the wave bends towards or away from the normal depending on the difference in the speeds of the two mediums.
How atomic excitation lead to concept of laser?
Seismic waves travels faster through solid rock than water because their speed depends on the density and composition of material that they pass through.Solid rock is denser than water, hence the energy from seismic waves transfer faster through solid rock than in water.
wave frequencys tell us the number of waves there are on that diagram.
Traveling wave of excitation is known as an action potential in nerve cells or an impulse in muscle cells. This wave allows for communication and coordination of cell activities in the body.
Excitation frequency can be calculated as the reciprocal of the excitation period, which is the time interval between two consecutive excitations. The formula is: Excitation frequency = 1 / Excitation period. Alternatively, if you know the excitation waveform (e.g., sine wave), you can determine the excitation frequency from the period of that waveform.
Neurons.
The wave is traveling in the direction indicated by its movement.
The wave is traveling in the direction indicated by its movement.
In a traveling wave, the relationship between the two velocities is that the wave velocity is equal to the product of the wavelength and the frequency of the wave.
The wave of excitation through nerve fibers and neurons is known as an action potential. It is an electrochemical signal that allows for the transmission of information within the nervous system. This process involves the movement of ions across the cell membrane, resulting in the propagation of the action potential along the length of the nerve fiber or neuron.
A standing wave is a wave that appears to be stationary and does not move through a medium, while a traveling wave is a wave that moves through a medium from one point to another.
A wave would be located at its starting point if there was no energy traveling through it.
Traveling wave
Transverse wave
Traveling wave