List of top Basic Engineering and Science Questions on Wave Optics asked in TANCET

The Rayleigh scattering loss, which varies as _______ in a silica fiber.
What is the near field length \(N\) that can be calculated from the relation (if \(D\) is the diameter of the transducer and \(\lambda\) is the wavelength of sound in the material)?
A chemical having specific heat of 3.3 kJ/kg K flowing at the rate of 20000 kg/h enters a parallel flow heat exchanger at 120°(C) The flow rate of cooling water is 50000 kg/h with an inlet temperature of 20°(C) The overall heat transfer coefficient is 1050 W/m\(^2\)K. The heat transfer area is 10 m\(^2\). Take for water, specific heat = 4.186 kJ/kgK. Effectiveness of the heat exchanger will be —————.