It is not true that the Doppler effect has anything to do with electricity and the flow of current. The Doppler effect involves pitch and sound frequency of moving objects, for example the apparent noise changes of an approaching car.
Yes true!
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
Triboluminescence is an optical phenomenon when certain types of crystals are pulled, ripped, crunched, or rubbed they generate flashes of light.The exact cause and mechanism of this phenomenon is still unknown.
Ultra sound is just a name for soundwaves of a certain frequency. Doppler is a phenomena where wavelengths change depending on the movement of the object that the wave has bounced off from. By signal processing you can give different colours to objects that move differently wrt the sound source.
In short, a theory is simply a group of ideas. This group of ideas are used to explain a certain topic such as a fact, event, or phenomenon.
Yes true!
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
Yes, it is true. See the link bellow.
basically metals get charged by getting extra electrons or by missing them. baut certain substances get there charges by a physical phenomenon ,like friction ,heating,or any chemical reactions , it all results in electron transfers, and the substance get charged.
The phenomenon whereby the refractive index of certain substances varies with light intensity
metalloids
metalloids
The phenomenon that you are not certain
Photoelectric phenomenon
Life Cycle effect