Physics, asked by aruljoseph621, 4 months ago

The acceptance angle (max) is equal to

–––––––––– (NA is the numerical aperture)

(a) sin(NA) (b) sin ( ) 1 NA 

(c) cos ( ) 1 NA  (d) none

Answers

Answered by rafiq63

1

Answer:

It's option (c)..........

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