Multimode graded index fibers with wavelength of 0.85‚âà√≠¬¨‚à´m have numerical aperture of 0.29 have core/cladding diameter o?#

85 ‚âà√≠¬¨‚à´m/ 125 ‚âà√≠¬¨‚à´m

62.5 ‚âà√≠¬¨‚à´m/125 ‚âà√≠¬¨‚à´m

100‚âà√≠¬¨‚à´m/140 ‚âà√≠¬¨‚à´m

50 ‚âà√≠¬¨‚à´m/ 125‚âà√≠¬¨‚à´m

Multimode graded index fibers with wavelength of 0.85‚âà√≠¬¨

1.	Multimode graded index fibers with wavelength of 0.85‚âà√≠¬¨‚à´m have numerical aperture of 0.29 have core/cladding diameter o?#
A.	62.5 ‚âà√≠¬¨‚à´m/125 ‚âà√≠¬¨‚à´m
B.	100‚âà√≠¬¨‚à´m/140 ‚âà√≠¬¨‚à´m
C.	85 ‚âà√≠¬¨‚à´m/ 125 ‚âà√≠¬¨‚à´m
D.	50 ‚âà√≠¬¨‚à´m/ 125‚âà√≠¬¨‚à´m
Answer» C. 85 ‚âà√≠¬¨‚à´m/ 125 ‚âà√≠¬¨‚à´m