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CBSE Notes 2011-2012 » IX-Science-Term2

Sound

A pulse

Multiple choice question

A pulse

Sonic booms are caused by the combination of

Multiple choice question

Sonic booms are caused by the combination of

Absorbent materials are to be used while making interior design in an auditorium as

Multiple choice question

Absorbent materials are to be used while making
interior design in an auditorium as

Which of the following is not the character of mechanical waves ?

Multiple choice question

Which of the following is not the character of
mechanical waves ?

In the bell jar experiment, as air is removed

Multiple choice question

In the bell jar experiment, as air is removed

Two sounds of same pitch and loudness differ in their

Multiple choice question

Two sounds of same pitch and loudness differ in their

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