The numerical aperture of a coaxial cable with core and cladding indices given by 2.33 and 1.4 respectively is
Posted: Thu Jul 14, 2022 10:40 am
a) 3.73
b) 0.83
c) 3.46
d) 1.86
b) 0.83
c) 3.46
d) 1.86
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