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How can ultrasonic waves be detected Kundt’s tube method?
Ultrasonic waves can be detected by Kundt’s tube. There at the nodes, lycopodium powder collects into the form of heaps. The average distance in between two adjacent heaps is equivalent to half the wavelength. Such type of method cannot be used when the wavelength of ultrasonic waves is extremely small that is, less than few mm. But a liquid medium, instead of lycopodium powder, powdered coke is utilized to detect the position of nodes.
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With a neat and clean diagram illustrate in brief the TIR. Describe critical angle and mention the two conditions for TIR.
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In utilizing Kirchoff's Laws to analyze a circuit a student correctly calculates a negative value for one of the currents in the circuit. What does the negative sign signify?
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how ultrasonic wave detect by piezoelectric detector ?
Harmful effects of Noise: 1. Noise causes nervous tension, aggression and commotion in normal human beings. 2. Continuous noise damage hearing power and complete deafness.
calculating the distance in effective handle.
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