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Which 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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