Question 11 MarkSONAR is used to produce and transmit low frequency sound waves.AnswerFalse. SONAR is used to produce and transmit high frequency sound wavesView full question & answer→
Question 21 MarkThe human ear can hear two sounds separately only if they reach the ear after an interval of one-twentieth of a second.AnswerFalse. The human ear can hear two sounds separately only if they reach the ear after an interval of one-tenth of a second.View full question & answer→
Question 31 MarkSound travels fastest in vacuum.AnswerFalse. Sound travels fastest in solid.View full question & answer→
Question 41 MarkLoudness of a sound depends upon the frequency of the sound.AnswerFalse. Loudness of a sound does not depend upon the frequency of the sound.View full question & answer→
Question 61 MarkGreater the amplitude of a vibration, greater will be the loudness of the sound produced.AnswerTrue.View full question & answer→
Question 71 MarkFrequency of a wave is the number of vibrations completed by it in one second.AnswerTrue.View full question & answer→
Question 81 MarkSound waves are transverse in nature.AnswerFalse. Sound waves are longitudinal in nature.View full question & answer→
Question 91 MarkThe voice box responsible for the production of sound in human beings is located in the mouth.AnswerFalse. The voice box responsible for the production of sound in human beings is located in the throat.View full question & answer→