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A multimode, step-profile fibre has a core radius of 50 microns, a core index of 1.52 and a cladding index of 1.50.
(a) If the fibre end-face is excited by a source with a wavelength of 850nm, what is the maximum number of bound modes that can be excited?
(b) What is the minimum number of bound modes that will be excited regardless of the wavelength of the source?
(c) If the fibre in (a) is now illuminated simultaneously by 2 sources that emit light at wavelengths of 1,300 and 1,550nm, respectively, what is the total number of different modal states that can be excited?
Kinetic and potential energy: Energy can exist in of 2 main forms. Kineti c energy is the kind of energy you probably think of right away when you imagine the energy. A pers
5kVA single-phase transformer has a turns ratio of 10:1 and is fed from a 2.5kV supply. Neglecting losses, Determine (a) the full load secondary current, (b) the minimum
A dartboard with a mass of 2.20 kg is suspended from the ceiling such that it is initially at rest. A 0.030-kg dart is thrown at the dartboard with a velocity of 1.3 m/s. A
what is zener diode?
i need a project report on logic gates urgently
Question: An optimistic model for a battery is just an ideal seat of EMF. A further realistic model commonly used to model actual batteries is Answer: Note that the i
Describe Q-factor in oscillations? How does it relay on damping
A high-performance dragster with a mass of m = 1333 kg can accelerate at a rate of a = 23.5 m/s2. Write an expression for the magnitude of the net force, FNET, that propels the dr
Calculate the heat required to melt 316.7kg of potassium metal at 336 K. The enthalpy of fusion of potassium is 2.35 kJ mol -1 .
Why the fringes are in circular form and how does it form?
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