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Laser beams are used to measure long distance because
Options
(a) they are monochromatic
(b) they are highly polarised
(c) they are coherent
(d) they have high degree of parallelism
Correct Answer:
they have high degree of parallelism
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - When a ceiling fan is switched off its angular velocity reduces to 50% while
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a ceiling fan is switched off its angular velocity reduces to 50% while
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- Which of the following is not a thermodynamical coordinate?
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
- The electric and magnetic field assiciated with an E.M. wave
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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