Who discovered the 'Korotkoff' sounds?
The speed of sound in wood is
The parts of sound waves where air pressure is lesser, is known as
The pleasant sound of music depends on its
The lowest level of frequency a human ear can detect, is
The loss of sound energy depends on
A component of our body that reflects x-rays is known as
We can hear the voice of alarm clock when there is
Sound travels more fast in
Sound waves spread out from
The longer, the echo takes, the
Sound moves in air because
Sound cannot travel in vacuum because
Sound created by musical instruments is amplified by
The length of air cutting is changed by
An example of stringed instruments is
If we put our ear by the wall, we will
Short waves have
Musical sounds are organized into
If frequency of sound wave is 100 Hz, it will send
As we turn older, our ears get
The term "vibration" has been derived from Latin word
Repetition of sound in empty hall is known as
String instruments produce sound when
The sequence of notes is known as
Long exposure to sounds is dangerous for
Tiny lumps of solid matter grew in kidney are known as
A device for viewing oscillations by a display on the screen of a cathode ray tube is called
Sound is carried to our ears through
Light travels
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