Ch 13_SOUND_Class 8
Quiz by Deepika Sharma
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- Q 1/10Score 0The loudness of sound depends on:29pitchfrequencyamplitudedecibel
10 questions
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- Q1The loudness of sound depends on:pitchfrequencyamplitudedecibel30s
- Q2An object is vibrating at 50 hertz. What is its time period?0.02 sec0.2 sec2 sec20 sec30s
- Q3Humans produce voice from which organ?Voice BoxNone of the aboveAdams appleThroat30s
- Q4Number of oscillations per second is calledamplitudeHertzDecibelsFrequency30s
- Q5A sound which is pleasant to ears is calledmusicnoisenone of the aboveharmony30s
- Q6What is the speed of sound in vaccum?infinite340 m/seczero3 x 10⁸ m/sec.30s
- Q7..............can hear the sounds of frequencies higher than 20,000Hz.HumanBatsdolphinswhales30s
- Q8Galton whistle works on which type of waves?all of the aboveultrasoundinfrasoundaudible30s
- Q9A coiled organ filled with fluidstirrupear drumanvilcochlea30s
- Q10What is the sound wave used in a SONARaudible rangeultrasoundnone of the aboveinfrasound30s
