Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

State in brief how sound is produced and how it is transmitted through a median and received by our ears. Name the type of waves responsible for vibration of our eardrum.
Asked by Sthitaprajna Mishra | 17 Feb, 2014, 08:52: PM
answered-by-expert Expert Answer
The matter or substance through which sound is transmitted is called a medium. Sound is produced by vibrating object.
 
When an object vibrates, then the particles in the surrounding medium vibrate. These particles send the vibrations to adjacent particles and energy continues to transmit until it reaches our ear.
 
A wave is a disturbance moving through a medium when the particles of a medium set the adjacent particles into vibration.
The particles do not move forward, but the disturbance does.
 
The sound waves propagate in the medium in the form of longitudinal wave and reaches to our ear. Therefore the waves responsible for vibration of our eardrum are LONGITUDINAL WAVES.

Answered by | 18 Feb, 2014, 11:21: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Physics
(3 X 3 = 9) CASE STUDY QUESTION 26. Ultrasounds can be used to detect cracks and flaws in metal blocks. Metallic components that are generally used in construction of big structures like buildings, machines and also scientific equipment. The cracks or holes inside metal blocks, which are invisible from outside, reduce the strength of the structure. Ultrasonic waves are allowed to pass through the metal block and detectors are used to detect the transmitted waves. If there is even a small defect, the ultrasound gets reflected back indicating the presence of flaw or defect. Clearly indicated in the figure Defect or flaw Ultrasound Detectors Metal Block (a) The transmitter sends an ultrasound wave of speed 5960m/s through a long steel bridge and a block reflects it back after 0.02s. how far the block in the metal bridge is from the transmitter. (b) With the above property of ultrasound waves, Can ultrasonic waves be used in the medical field? If so, how and give one use in the medical field to justify your answer? (c) Give two practical applications of reflection of sound waves?
Asked by mailtoparvathyprajith | 31 Jan, 2024, 06:55: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
What is the SI Unit of "Intensity of Sound"?
Asked by manaskumarbiswasbrb | 04 Feb, 2023, 08:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
explain human ear with lable diagram
Asked by sm6878261 | 12 Jan, 2023, 07:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
MCQ on reflection of light and sound chapter  
Asked by pooja12366764 | 25 Jan, 2022, 10:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
propagation of sound
Asked by ashishyadav | 22 Mar, 2021, 05:20: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
What is sound   
Asked by Alamglassfebricartion | 16 Mar, 2021, 09:57: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
A stone
question image
Asked by satyamthakur7570 | 21 Dec, 2020, 09:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
what is reverabation
Asked by mursaleenmalik1962 | 14 Dec, 2020, 07:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Can blackbox pings signal travel 3000kms? Can it be reflected on metal surface?
Asked by dwarakanathan.s | 19 Apr, 2020, 07:02: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
what is tuning fork 
Asked by upmasoodpassi | 05 Apr, 2020, 11:09: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×