Laser beams are used to measure long distance | vedclass

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(D) The primary reason laser beams are used to measure long distances is their high degree of parallelism (low divergence). Because laser light is hig

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They have high degree of parallelism

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(D) The primary reason laser beams are used to measure long distances is their high degree of parallelism (low divergence). Because laser light is highly directional,the beam remains narrow and does not spread significantly even over very large distances. While laser beams are also monochromatic and coherent,these properties describe the nature of the light source rather than the specific reason why they are suitable for long-distance measurement.

Laser beams are used to measure long distances because

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