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← ScienceWhich effect occurs when a pulsed laser ablates glass?
A)Rapid plasma formation and material ejection✓
B)Uniform heating and thermal expansion
C)Controlled recrystallization, improved hardness
D)Stable structural phase transformation occurs
💡 Explanation
Laser ablation results in plasma formation because rapid energy deposition drives intense ionization; therefore, material is ejected as plasma rather than undergoing thermal expansion because the laser pulse duration is shorter than the heat diffusion timescale.
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