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A weakly guiding fibre with a particular graded core index has cut-off V-values for its 2nd, 3rd and 4th modes of 2.5, 3.9 and 5.2, respectively. The core radius is 4 microns, the core index is 1.47 and the cladding index is 1.46.
Determine the range of source wavelength values in nm for which the fibre is:
(a) single-mode
(b) two-mode,
(c) three-mode
(d) more than 3-mode.
a column of water contains fine metal particles of radius 2*E(-8) m, which are in thermal equillibrium at 298 K. if there are 1000 particles per unit volume at a given height,how m
In the Compton effect, a photon of wavelength l collides with a stationary electron. The wavelength of the emitted photon is: a) longer than l b) shorter than l c)
the value of 10 radian is?
Electrical Properties of Dielectric Materials The term "Dielectric strength" of a dielectric material means the maximum electric field strength that it can withstand intrinsica
The shear force of a cantilever beam of length L carrying a uniformaly distributed load W Per unit length is how much at fixed end
alkaline battery
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Describe an actual situation that would give rise to the free body diagram
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