Question

Q1. B) Answer the following questions in one sentence:
a) Write the function of cochlea.
Ans:
b)What is an echo?
Ans:
c)Write the uses of SONAR.
Ans:
d)Write the use of outer ear.
Ans:​

Answer 1

Answer:

A) The cochlea contains the spiral organ of Corti, which is the receptor organ for hearing. It consists of tiny hair cells that translate the fluid vibration of sounds from its surrounding ducts into electrical impulses that are carried to the brain by sensory nerves.

b)In audio signal processing and acoustics, echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener

c)SONAR is used to determine the direction and speed of underwater objects. SONAR is generally found in ships and boats. SONAR uses ultrasonic sound waves to detect the underwater objects, fishes, submarines, boats.

d)The function of the outer ear is to collect sound waves and guide them to the tympanic membrane. The middle ear is a narrow air-filled cavity in the temporal bone. It is spanned by a chain of three tiny bones—the malleus (hammer), incus (anvil), and stapes (stirrup), collectively called the auditory ossicles.

Explanation:

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