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CBSE Notes 2011-2012 » IX-Science-Term2

Sound

Hertz is the unit of

Multiple choice question

Hertz is the unit of

Loudness of sound is expressed in

Multiple choice question

Loudness of sound is expressed in

Sounds having frequency more than 20 Hz are called

Multiple choice question

Sounds having frequency more than 20 Hz are called

The maximum displacement of a vibrating body on either side of its mean position, is known as its

Multiple choice question

The maximum displacement of a vibrating body on either side of its mean position, is known as its

The frequency of a given sound is 1.5 kHz. The vibrating body is

Multiple choice question

The frequency of a given sound is 1.5 kHz. The vibrating body is

A given sound is inaudible to the human ear if

Multiple choice question

A given sound is inaudible to the human ear if

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