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Give reason that ultrasonics not be produced by passing high frequency alternating current by a loud speaker
At these high frequencies, inductive reactance is so high where is no current flows throughout the coil of the loud speaker and therefore ultrasonic waves cannot be produced.
In laboratory frame of reference, particle A moves along X direction with velocity 0.5 c and particle B moves along Y direction with velocity 0.4 c. Evaluate velocity of particle B
For the circuit shown in Figure , verify the value of V1. If the total circuit resistance is 36Ω. Determine the supply current and the value of resistors R 1 , R 2 and R 3
What is hologram? Holography When an entity is photographed by a camera a two dimensional image of three dimensional objects is obtained. A three dimensional image of
Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.
Beauty criterion (Dirac) The idea that the more aesthetically pleasant a theory is, the better it is. Of course this criterion does not stand up to the real test whether or no
capillary law
Your friend has gifted an earphone set to you. While music is on you will try to oppose the two ear phone pieces to attract. Task-I: Will they attract? If yes, why so? Task-II: Why
ACCELERATION: The time rate of change of velocity of a body is known as acceleration.
What is the echo of the launched pulse? Any discontinuity into the medium of propagation of an ultrasonic pulse provides rise to back-reflection that travels back to the input
What components/materials are chosen because of their especially high resistivity and explain why high resistivity
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