NA meaning in Electronics ?

Answer: What is Numerical Aperture mean?

In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can accept or emit light. By incorporating index of refraction in its definition, NA has the property that it is constant for a beam as it goes from one material to another, provided there is no refractive power at the interface. The exact definition of the term varies slightly between different areas of optics. Numerical aperture is commonly used in microscopy to describe the acceptance cone of an objective (and hence its light-gathering ability and resolution), and in fiber optics, in which it describes the range of angles within which light that is incident on the fiber will be transmitted along it.

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Full Form	Category
Negative Alignment	Academic & Science
Norsk Arkivråd	Academic & Science
Norwegian Archives Council	Academic & Science
Norsk Arkivr??	Academic & Science
Non-Attainment	Academic & Science
Non-Anomalous	Academic & Science
Nabisco Holdings Corporation	Business
Non-Asbestos	Business
Necessary Action	Business
National Bank of Canada	Business
Not Advertised	Business
National Association	Business
Non-Antistatic	Business
National Amusements	Business
Non-Availability	Business
National And	Business
Sodium	Chemistry
Sodium (natrium)	Chemistry
Not Active	Chemistry
Nucleic Acid	Chemistry
Not Achieved	Community
Nature Aquarium	Community
Never Alone	Community
Neighborhood Association	Community
Not Advanced	Community
Network Aspects (ETSI TC)	Computer and Networking
North America	Computer and Networking
Non-adaptive	Computer Hardware
Not again	Computing
Null Acl	Computing
No answer , No Acount, , No App, No Action... (IT )	Computing
Namibia	Country Names
Northern Areas (gilgit Baltistan)	Country Specific
North American	Country Specific
Natural Amber	Earth Science
Numerical Aperture	Electronics
Nelson Allen	General
Novice Agility	General
Nucleic Acids	General
New Adult	General
No Assets	General
Network Appearance	General
NA Not Applicable	General
Needs Approval	General
Nce And	General
Ne and	General
NPT and ABRA	General
New Americana	General
North Asia	General
No Archers	General
Nandu Ahuja	General
Nin A'cretus	General
Numeric Aperture	General
Non Answer	General
Non Available	General
Not Animate	General
Naturalized Archiver	General
Natural Aspirated	General
No Acceleration	General
Nestle As	General
No Attachment	General
No As	General
NA Abbreviation	General
Naturaly Aspirated	General
Non Allocating	General
Needs Action	General
Namibia According	General
Natalie Andrea	General
Non Alcoholic	General
No Answer	Governmental
Native American	Governmental
New Amsterdam	Governmental
National Academy	Governmental
Not Approvable	Governmental
Nisgha (Nisga'a)	Governmental
Not Allowed	Governmental
Nigerian Army	Governmental
No Alcohol	Governmental
Napoli (Provence)	International
Nord-Amerika	International
Not Applicable	Internet Chat
Nursing Assistant	Jobs
Nurse Anesthetist	Jobs
Numerical Analysis	Maths
No Abnormalities	Medical
Not Admitted	Medical
Normally Aspirated	Medical
NorAdrenaline	Medical
Nasal Augment	Medical
Narcotics Anonymous	Medical
NeurAminidase	Medical
Nucleoside Analogue	Medical
Not Assessed	Medical
Non Activin	Medical
Natural Aspiration	Medical
Not Available	Messaging
Not Approved	Military and Defence
Nigeria Army	Military and Defence
Nation Assistance	Military and Defence
Naval Academy	Military and Defence
Address	Military and Defence
Network Address	Networking
Node Access	Networking
Network Annihilation	Networking
Neutral Axis	Physics Related
Non-assessed	Real Estate
Native Authority	Regional
Not Ascertainable	Space Science
Next Action	Space Science
Non-athlete	Sports
Not Answered	Telecommunication
North American Airlines	Transport & Travel