what form of energy can be coverted from sound to light?
Electrical energy is really the effect of moving electrical charges from one point to another in a conductor. Electrical charges moving through a conductor is called electricity. Electrical energy may be easily changed into other forms of energy to suit our particular needs. Lightning is an example of electrical energy. Electric current is the means by which electrical energy is most easily transported to places where it is needed and converted into other forms.
When we turn on the television, electrical energy changes into light and sound. Even though undesirable, some amount of heat is also produced.