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Distinctions between- ac oustic, ultrasonic, subsonic and supersonic waves?-engineering physics1 AnswerA supersonic airplane is expected to fly at bot h subsonic and supersonic speeds during its whole flight course. Which one of the following statements is TRUE? GATE- Aerospace1 AnswerExplain Matter waves and their Characterist ic properties. -engineering physics1 Answerwhat are the method of creating shock waves in the laboratory using a shock tube?-engineering physics1 AnswerState the principle of superposition of waves. What happens when phase differences between two waves are (i) 0 and (ii)π? -Physics CBSE class 11 20161 AnswerWhich one of the following statements is TRUE for the ultrasonic machining (USM) process?1 AnswerWhy are infra-red waves often called heat waves ? Explain (Physics CBSE 2018)1 AnswerExplain density of states (qualitative only) Fermi–Dirac Statistics-engineering physics?-engineering physics1 AnswerWhat do you understand by the statement, ‘‘Electromagnetic waves transport momentum’’ ? (Physics CBSE 2018)1 AnswerThe stagnation pressures at the inlet and exit of a subsonic intake are 100 kPa and 98 kPa, respectively. The pressure recovery of this intake will be ______ (accurate to two decimal places). (GATE-Aerospace-Engineering-2018)1 AnswerA transit time ultrasonic flow meter uses a pair of ultrasonic transducers placed at 45o angle, as shown in the figure. GATE-Instrumentation-Engineering-20141 AnswerWhich one of the following NDT techniques CANNOT be used to detect an internal crack in a steel shaft? (-Gate metallurgical engineering 2014)1 AnswerWhat are the application of Schrodinger wave equation for a free particle in a potential well of infinite depth ?-engineering physics1 AnswerExplain and give an expression for electrical conductivity based on quantum free electron theory?-engineering physics1 AnswerWhat are the application of Schrodinger wave equation for a par ticle in a potential well of infinite depth ?-engineering physics1 AnswerC apillary waves are generated in the sea. The speed of propagation (C) of these waves is known to be a function of density (ρ), wave length (λ), and surface tension (σ). Assume, ρ and λ to be constant. If the surface tension is doubled, in the functional form of the relevant non-dimensional group, the percentage increase in propagation speed (C) is _______ .0 AnswerWhat is the Atomic packing factors for face centered cube?-engineering physics1 AnswerExplain the failure of classical free electron theory.-engineering physics1 AnswerA thermocouple, mounted flush in an insulated flat surface in a supersonic laminar flow of air measures the (GATE-Aerospace-Engineering-2018)1 AnswerWhat is Probability density of wave function? engineering physics1 Answer
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