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Subjects
Science State Board
Class 8
Sound
Textbook questions
6.
Match the following I
Exercise condition:
4
m.
Column - I
Column - II
Ultrasonics
Frequency below \(20\) \(Hz\)
Needs material medium
\(330\) \(m/s\)
Frequency more than \(20000\) \(Hz\)
Speed of sound in air
Frequency more than \(20000\) \(Hz\)
\(330\) \(m/s\)
Needs material medium
Frequency below \(20\) \(Hz\)
Infrasonics
Frequency below \(20\) \(Hz\)
\(330\) \(m/s\)
Needs material medium
Frequency more than \(20000\) \(Hz\)
Sound propagation
Needs material medium
Frequency below \(20\) \(Hz\)
Frequency more than \(20000\) \(Hz\)
\(330\) \(m/s\)
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