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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 self induced e.m.f. in a 0.1 H coil when the current in it is changing
- When the energy of the incident radiation is increased by 20%,
- If radius of earth’s orbit is made 1/4, the duration of a year will become
- When a p-n junction is reverse biased, then the current through the junction
- A charged particle experiences magnetic force in the presence of magnetic field.
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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