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← ScienceWhich consequence results when a pulsed laser heats glass?
A)Photoablation removes a thin surface✓
B)Annealing relieves internal material stress
C)Tempering increases compressive fracture resistance
D)Sintering increases bulk material density
💡 Explanation
Photoablation occurs because the pulsed laser locally vaporizes the glass surface; therefore, material is removed layer by layer, rather than a change in its bulk properties because annealing, sintering, and tempering change material properties via slower heating.
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