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 response 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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