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Importance of Acoustics MCQ (Multiple Choice Questions) PDF Download
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The MCQ: The technique or method to absorb undesirable sounds by soft and porous surface is called; "Importance of Acoustics" App Download [Free] with answers: acoustic protection, unacoustic protection, audible protection, and decibel protection for online certificate programs. Solve Sound Quiz Questions, download Google eBook (Free Sample) for school certificate.
Importance of Acoustics Questions and Answers PDF Download
The technique or method to absorb undesirable sounds by soft and porous surface is called
- acoustic protection
- unacoustic protection
- audible protection
- decibel protection
When sound interacts with materials and boundaries, it displays all the properties of
- heat
- waves
- light
- electricity
Both bats and dolphins can “see” using
- electric waves
- light waves
- heat waves
- sound waves
Soft materials absorb a large amount of
- heat energy
- light energy
- electromagnetic waves
- sound energy
The echo of sound is more prominent if the surface is
- soft
- rigid
- porous
- smooth
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Grade 9 Physics Career Tests
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Grade 9 Physics MCQ Questions
- Energy present in a body due to its height is called
- If a body covers equal distances in equal intervals of time however short interval maybe, then it has
- Wires on electric poles are given some sag to prevent breaking in
- Stone, metal spoon, pencil are examples of
- Up thrust of water acting on a wooden cube of sides 10cm immersed completely in water is
Importance of Acoustics MCQs Book Questions
- Amount of work done in bringing unit positive charge from infinity to a point in electric field is called
- If we apply law of conversion of energy to electromagnetic induction, electrical energy induced in a conductor comes from
- A transformer is needed to convert 200 V into a 10 V supply. If there are 1000 turns on primary coil, then number of turns on secondary coil is
- Capacitor plates are separated by an insulator known as
- Capacitors which use chemical reactions to store charge are called