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प्रश्न
Mention if the following statement is true (T) or false (F) Give reason.
The auditory nerve is purely for perceiving sound
विकल्प
True
False
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उत्तर
False
The auditory nerve responsible for sound as well as for the body balance.
संबंधित प्रश्न
Photoreceptor cells are present in __________.
(A) blind spot
(B) retina
(C) cochlea
(D) cornea
find odd one from following: Malleus, iris, Stapes, Incus.
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.
Differentiate between near vision and distant vision (Shape of the eye lens).
Give scientific reasons: We cannot distinguish colours in moonlight.
Name the following:
The nerves which transmit impulse from ear to the brain.
The following diagram refers to the ear of a mammal.
(i) Label the parts 1 to 10 to which the guidelines point.
(ii) Which structure:
(a) converts sound waves into mechanical vibrations?
(b) Converts vibrations into nerve impulses?
(c) Responds to change in position?
(d) Transmits impulses to the brain?
(e) Equalizes atmospheric pressure and pressure in the ear.
Choose the Odd One Out:
Assertion: Human beings Cannot hear infrasonic sounds.
Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.
Select the option with incorrect identification:
