Optical phonons are generated when the atoms in a diatomic mlecule – McqOptions

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1.	Optical phonons are generated when the atoms in a diatomic mlecule
A.	Vibrate in opposite directions, without shifting their centre of mass
B.	Vibrate in opposite directions, with a shift of their centre of mass
C.	Vibrate in same direction
D.	Vibrate in same direction with equal displacements, irrespective of their individual masses.
Answer» C. Vibrate in same direction

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Optical phonons are generated when the atoms in a diatomic mlecule