Damage to the inner ear. Aging and exposure to loud noise may cause wear and tear on the hairs or nerve cells in the cochlea that send sound signals to the brain. When these hairs or nerve cells are damagedor missing, electrical signals aren't transmitted as efficiently, and hearing loss occurs.
-Answered by Sohail alam On 26 April 2019:08:43:39 AM
The truck BHA007 features the insanely loud, india-made, truck Horns. These horns are ridiculously loud and, more importantly, actually sound like a blast! The horns are hand-tuned in the india. Simply put, they sound completely authentic. ... responsibility to comply with local noise ordinances and D.O.T. sound level laws.
-Answered by Sohail alam On 26 April 2019:08:46:36 AM
Wavelength is also measured in metres (m) - it is a length after all. The frequency, f, of a wave is the number of waves passing a point in a certain time. We normally use a time of one second, so this gives frequency the unit hertz (Hz), since one hertz is equal to one wave per second.
-Answered by priyanshu kumar On 26 April 2019:08:57:15 AM
of compressions and rarefactions in the elastic medium, as illustrated by Figure 1.1(a). When .... to a distance from the source equal to about a wavelength of sound or equal to three times the .... The minimum audible level occurs at .... such as barriers and reflectors on the sound pressure level at an observation point.
-Answered by priyanshu kumar On 26 April 2019:08:58:14 AM
The commonly stated range of human hearing is 20 Hz to 20 kHz. Under ideal laboratory conditions,humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditorychannel of the cochlea.
-Answered by priyanshu kumar On 26 April 2019:09:01:00 AM
Household sources: Gadgets like food mixer, grinder, vacuum cleaner, washing machine and dryer, cooler, air conditioners, can be very noisy and injurious to health. Others include loud speakers of sound systems and TVs, ipods and ear phones.
-Answered by Himanshi Verma On 21 April 2019:10:40:16 AM
What are the sources of noise pollution? Noise can come from many places. ... Gadgets like food mixer, grinder, vacuum cleaner, washing machine and dryer, cooler, air conditioners, can be very noisy and injurious to health. Others include loud speakers of sound systems and TVs, ipods and ear phones.
-Answered by Himanshi Verma On 21 April 2019:10:40:28 AM
The vibrating part of the- flute is the air column which is vibrating and comes from within the instrument. veena is usually the strings, but they do it by means of the saddle and the bridge. tabla is the membranes which vibrate upon beating it.
-Answered by Himanshi Verma On 21 April 2019:10:40:44 AM
A periodic motion of the particles of an elastic body or medium in alternately opposite directions from the position of equilibrium when that equilibrium has been disturbed (as when a stretched cord produces musical tones or molecules in the air transmit sounds to the ear)
-Answered by Himanshi Verma On 21 April 2019:10:50:16 AM
You should know that the mechanical waves are those waves which require a medium for propagation. Sound needs a medium (solids, liquid, or gas) for their propagation and cann't travel without a medium. Therefore, sound wave is a mechanical wave.
-Answered by Akki chauhan On 15 January 2019:09:46:22 AM
You can see here all the solutions of this question by various user for NCERT Solutions. We hope this try will help you in your study and performance.
This Solution may be usefull for your practice and CBSE Exams or All label exams of secondory examination. These solutions or answers are user based solution which may be or not may be by expert but you have to use this at your own understanding of your syllabus.