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← ScienceWhich outcome results when a pulsed laser induces heating?
A)Thermoelastic expansion generates acoustic waves✓
B)Reduced molecular kinetic energy occurs
C)Increased refractive index homogeneity forms
D)Higher heat capacitance causes rapid cooling
💡 Explanation
Thermoelastic expansion generates acoustic waves; because rapid thermal excitation induces stress, therefore the material vibrates as an elastic wave, rather than causing immediate equilibrium because homogenous reactions are slow.
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