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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
- In an NPN transistor the collector current is 24 mA. If 80% of the electrons
- A moving neutron collides with a stationary α-particle.The fraction of the kinetic energy
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- The total energy of an electron in the first excited state of hydrogen atom
- The current gain of a transistor in common base configuration is 0.96.
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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