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← ScienceWhich consequence results from thermal blooming when a high-power laser propagates?
A)Divergence increases, blurring the spot✓
B)Wavelength shifts towards the blue
C)Polarization rotates uncontrollably
D)Coherence length abruptly increases
💡 Explanation
Thermal blooming creates a non-uniform refractive index via heat deposition; therefore, laser beam divergence increases dramatically because the beam refracts outward due to the hot air on its path, rather than maintaining its initial focus.
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