1. A note of 250 Hz travels through a solid. If the velocity of sound in the solid is 4000 m/s, the wavelength is _______.   1 m   8.0 m   16 m   24 m   Hint Half-n-half Clue   2. A low-pitched sound is very shrill in nature.   True   False   3. The frequency of a note that is one octave higher than a note of 768 Hz is _______.   776 Hz   800 Hz   1024 Hz   6144 Hz   Half-n-half Clue   4. The velocity of a wave is equal to the product of the _______ and the wavelength.   time period   amplitude   frequency   Half-n-half Clue   5. The effect produced in the ear due to the sound of a particular frequency is called the _______.   pitch   loudness   amplitude   Half-n-half Clue   6. The time in which a vibrating body completes one vibration is called _______.   amplitude   time period   frequency   Half-n-half Clue   7. The distance between two consecutive crests of a wave is called _______.   period   amplitude   wavelength   Half-n-half Clue