

MCQOPTIONS
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1. |
The_shadow_velocity_is_given_by_0.4_μm_μs-1_and_shadow_pulse_of_width_300_μs_is_registered_at_an_instant_by_the_photodetector._Determine_the_outer_diameter_of_the_optical_fiber_in_μm.$# |
A. | 100 μm |
B. | 120 μm |
C. | 140 μm |
D. | 90 μm |
Answer» C. 140 ‚âà√≠¬¨‚à´m | |