__________________ in the laser occurs when photon colliding with an excited atom causes the stimulated emission of a second photon.

__________________ in the laser occurs when photon colliding with an

1.	__________________ in the laser occurs when photon colliding with an excited atom causes the stimulated emission of a second photon.
A.	Light amplification
B.	Attenuation
C.	Dispersion
D.	Population inversion
Answer» B. Attenuation

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__________________ in the laser occurs when photon colliding with an excited atom causes the stimulated emission of a second photon.

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