4 Which type of light bulb produces light through a process

4. Which type of light bulb produces light through a process of recombining electrons with holes? O Incandescent O Fluorescent Light emitting diode o All of the above

Solution

Light Emitting Diode: When this diode is forward biased , an electron moves from the n-type into the p-type silicon, it will combine with a hole and disappear. That makes an atom complete and more stable and it gives off a little burst of energy (a kind of \"sigh of relief\") in the form of a tiny \"packet\" or photon of light.