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Electrons are knocked off atoms, causing electricity to flow.
hot air rises.
a lens is a transparent material that refract slight in a particular way.
the light rays hit the piece of glass and the surface of the glass causes it to refract
to make a hot air balloon rise you use hot air
Forced air heating
Electromagnetic radiation sometimes behaves like waves - for example, interference.
wavelength
Total internal reflection.
Convex is an adjective that describes something has a surface or boundary that curves or bulges outward. Convex lens are thicker at the center, they do cause light to converge.
Infrared light is even used to heat food sometimes - special lamps that emit thermal infrared waves are often used in fast food restaurants! Shorter, near infrared waves are not hot at all - in fact you cannot even feel them. These shorter wavelengths are the onesused by your TV's remote control.
a copy of an object formed by reflected or refracted waves of light .
The discovery itself is an example of the value of the scientific method, and has
nothing to do with any aspect of electromagnetic radiation. But the confirmed
existence of photons is an explanation of the particle behavior of that radiation.
Different waves arrive at a point at the same time.
