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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.
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric resistance of a certain wire of iron is R. If its length and radius
- A photosensitive metallic surface has work function, hν₀. If photons of energy
- In a transistor the collector current is always less than the emitter current
- A long straight wire carrying current of 30A is placed in an external uniform
- If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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