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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 piece of marble is projected from the earth’s surface with velocity of 50 m/s
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
- A body is thrown upward from ground covers equal distances
- A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour
- Two sources P and Q produce notes of frequency 660 Hz each.
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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