'A phonon is a tiny packet of sound; change 1 letter to get this unit of electromagnetic energy'
a photon
PHYSICAL SCIENCE: A phonon is a tiny packet of sound; change 1 letter to get this unit of electromagnetic energy
A phonon is a tiny packet of sound; change 1 letter to get this unit of electromagnetic energy
A phonon is a tiny packet of sound; change 1 letter to get this unit of electromagnetic energy
PHYSICAL SCIENCE
a photon
PHYSICAL SCIENCE