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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
- A parallel beam of fast moving electrons is incident normally on a narrow slit.
- Light propagates rectilinearly because of its
- In an unbiased p-n junction, holes diffuse from the p-region to n-region because of
- In nuclear fusion, two nuclei come together to form a large nucleus.
- When a p-n junction is reverse biased, then the current through the junction
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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