The shadow method is used for measurement of the outer diameter of an optical fiber. The apparatus employs a rotating mirror with an angular velocity of 4 rad/s which is located at 10 cm from the photo detector. Compute the shadow velocity.

The shadow method is used for measurement of the outer diameter of an

1.	The shadow method is used for measurement of the outer diameter of an optical fiber. The apparatus employs a rotating mirror with an angular velocity of 4 rad/s which is located at 10 cm from the photo detector. Compute the shadow velocity.
A.	0.1 μm μs-1
B.	0.4 μm μs-1
C.	0.87 μm μs-1
D.	1 μm μs-1
Answer» C. 0.87 μm μs-1

Discussion

No Comment Found

Related MCQs

The techniques used to determine the refractive index profile can also be used to determine the core diameter.
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.
The shadow method is used for measurement of the outer diameter of an optical fiber. The apparatus employs a rotating mirror with an angular velocity of 4 rad/s which is located at 10 cm from the photo detector. Compute the shadow velocity.
The calculations of the numerical aperture from a refractive index data are less accurate for the graded index fibers than for step index fibers.
THE_SHADOW_METHOD_IS_USED_FOR_MEASUREMENT_OF_THE_OUTER_DIAMETER_OF_AN_OPTICAL_FIBER._THE_APPARATUS_EMPLOYS_A_ROTATING_MIRROR_WITH_AN_ANGULAR_VELOCITY_OF_4_RAD/S_WHICH_IS_LOCATED_AT_10_CM_FROM_THE_PHOTO_DETECTOR_._COMPUTE_THE_SHADOW_VELOCITY.?$
The techniques used to determine the refractive index profile can also be used to determine the core diameter. State whether the given statement is true or false.$
The_shadow_velocity_is_given_by_0.4_‚âà√≠¬¨‚à´m_‚âà√≠¬¨‚à´s<sup>-1</sup>_and_shadow_pulse_of_width_300_‚âà√≠¬¨‚à´s_is_registered_at_an_instant_by_the_photodetector._Determine_the_outer_diameter_of_the_optical_fiber_in_‚âà√≠¬¨‚à´m.$#
Which of the following is a non-contacting optical method of on-line diameter measurement?
What is the minimum value of accuracy in diameter is needed to avoid radiation losses in the fiber?
During the fiber drawing process, the fiber outer diameter is maintained constant to within ________

The shadow method is used for measurement of the outer diameter of an optical fiber. The apparatus employs a rotating mirror with an angular velocity of 4 rad/s which is located at 10 cm from the photo detector. Compute the shadow velocity.

Discussion

No Comment Found

Related MCQs

Reply to Comment