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A classroom has dimension 10×8×6m3. the reverberation time is 3 sec. calculate the total absorption of surface and average absorption.
Concept: Reflection of Sound(Reverberation and Echo)
A conference room has a total volume of 2000 m3.The magnitude of total
absorption with in the conference room is100 Sabin.Calculate thereverberation time.
Concept: Reflection of Sound(Reverberation and Echo)
Discuss in details any three factors affecting acoustics of a hall with their
remedies.
Concept: Acoustic Design of a hall
State ‘magnetostriction effect’. Mention any two application of ultrasonic waves
Concept: Magnetostriction Oscillator
An ultrasonic pulse of 0.09M Hz sends down towards the sea-bed which returns after 0.55 seconds. The velocity of ultrasonic waves in sea water is 1800 m/sec . calculate the depth of sea and wavelength of ultrasonic pulse.
Concept: Ultrasonic Wave Generation
Explain cavitation effect.
Concept: ultrasonic cleaning(cavitation)
Explain the principle, construction and working of a Magnetostriction Oscillator.
Concept: Magnetostriction Oscillator
Discuss any three applications of Ultrasonic waves
Concept: Ultrasonic Wave Generation
