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Modal Dispersion in Step-Index Fibers
Determine the core radius of a multi-mode step index fiber with a numerical aperture NA = 0.1 if the number of modes M = 5000 when the wavelength is 870nm. If the core refractive index n1 = 1.445, the group index N1 = 1.456, and Δ is approximately independent of wavelength, determine the modal-dispersion response time σT for a 2-km-Iong fiber.
Age-hardening of Aluminium Alloys In specific alloys precipitation from a single phase may arise. The precipitate phase might be in form of determine sub-microscopic particles
(a) Describe and calculate i) Humidity Ratio ii) DPT iii) Relative Humidity iv) Density v) Enthalpy of atmosphere air when DBT is 35 0 C, WBT is 23 0 C and the ba
Define the Disadvantages of Abrasive Jet Cutting Machines Slow material removal rate. Stray cutting and hence accuracy is not good. Abrasive powder cannot be reused
During paddling of a bicycle,the force of friction exerted by the ground on the two wheels is? Ans) Since the rear wheel rotates by itself (we only paddle to rotate the fron wheel
Space mass and weight: The geometric region occupied by bodies called as space. When body changes its position w. r.t. the other bodies, then body is known to be in motion.
(a) Explain different types of frames. Compare their merits and demerits. Diagram and illustrate a frameless construction. (b) Illustration briefly the constructional features o
Is bleed necessary in condensing and back pressure both the turbine? What is the use of bleed in steam turbine? What is the basic difference in condensing and backpressure turb
Types in trusses
The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is reheated to 535
The following steps are taken to decarbonise the engine : Remove the exhaust muffler. Disconnect the spark plug. Remove the intake pipe bolt. Loosen the bolt de
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