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Demonstrate the typical ultrasonic flaw detector in its reflection modes?
A typical ultrasonic flaw detector into its reflection modes is as demonstrated below:
Assume that d be the distance of flaw by the transducer; and ‘v’ be the velocity of sound into the test specimen as well as t be the time of flight. In that case the total distance travelled by the sound into the specimen
v = (2d)/t or d = (vt)/2
The given diagram shows such echo pattern indicating the presence of a defect.
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Any thermodynamic procedure which takes place in a system without the exchange of heat with the surroundings.
a ball is thrown horizontally from a point 100 m above the ground with a speed of 20 m/sec .find the time it takes to reach the ground...
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1+1
Q. Which of the following isn't true of Guglielmo Marconis experiments on wireless transmission Answer:- A) In 1901 he broadcasted a signal from Newfoundland to England
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