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SOUND MCQs

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1. The velocity of sound in air at 0 Ā°C is:





2. Sound waves are:





3. The speed of sound is greatest in:





4. Unit of intensity level of sound is:





5. Sounds of frequencies higher than 20,000 hertz are called:





6. The property or characteristic of sound by which a shrill sound can be distinguished from a grave one is called:





7. The unit of intensity of sound is:





8. Ear of normal human being responds to the frequencies of sound between:





9. For destructive interference of sound waves the condition for path difference is:





10. Two tuning forks of frequencies 250 and 252 hertz are heard simultaneously. The number of beats will be:





11. The change in the pitch of sound caused by the relative motion of either the source of sound or the listener is called the:





12. The relationship between velocity ā€˜Vā€™, frequency ā€˜fā€™ and wavelength ā€˜Ī»ā€™ of a wave is:





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