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प्रश्न
How could you convince a small child that when you speak, it is not necessary for air to travel from you mouth to the ear of listener?
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उत्तर
There is no actual movement of air from the sound-producing body to our ear. The air layers only vibrate back and forth and transfer the sound energy from one layer to the next layer and fall on our ears; the eardrums vibrate accordingly and reproduce the sound.
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संबंधित प्रश्न
Given below is a diagram depicting a defect of the human eye, study the same and then answer the questions that follow:
(i) Name the defect shown in the diagram.
(ii) What are the two possible that cause this defect?
(iii) Name the type of lens used to correct this defect.
(iv) With the help of a diagram show how the defect shown above is rectified using a suitable lens.
fill in the blanks with suitable functions: Ciliary body and __________.
Mention, where in living organism is the following located and state their main function:
Organ of corti
Mention if the following statement is true (T) or false (F) Give reason.
Malleus incus and stapes are collectively called the ear ossicles.
Where is the Semicircular canals located? Briefly mention its function.
What is the function of three tiny bones in the ear ?
Choose the correct answer.
Canal joining middle ear to pharynx ___________
Long answer question
Draw the neat labelled diagram of the human ear.
Select the CORRECT match of part of the human ear and its function.
State the functions of the following:
Auditory nerve
