If frequency increases,
Sound is made louder by increasing
Trombone is also an example of
Vibrations are caused due to
In large empty rooms, even a click keeps on
Sounds of thunder and horn of lorries are known as
Sound is created by our vocal cord due to
Like light, sound cannot
'Ultrasound' is a reflection of
Three main types of musical instruments are
As compare to air, sound travels faster in
Sounds of vehicles, aircrafts and machines are called
The organs of a human that detect sounds are
Sound is a form of
The loudness of sound is also known as
The more dense the liquid, the
The only thing of a note that can vary, is
Loud noise can
The normal value of decibel that our ears can detect is
A drum makes sound of
An example of longitudinal wave is
Sound loses more energy in
The note also depends on
Large empty room often sounds
For communication astronauts use radio because
The pitch of the note depends upon the
The caliber of instrumental note depends on the
We cannot hear alarm of a clock if there is
The third effecter of sound created by vibrating strings is
20 dB has hundred times more energy than
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