Alight bulb converts electrical energy into light energy when it is turned on, and light is a form of radiant energy. Given these facts, a bulb converts what into radiant energy when turned on among the following options:
- sun's heat
 - adding heat
 - electrical energy
 - peachleaf willow
 - electrically
 - an electron lens
 - our nearest star
 - hydrogen and oxygen


 

   electrical energy      