l1 ​= 30cm and l2 = 70cm. Then v is equal to:

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A tuning fork of frequency 480Hz is used in an experiment for measuring speed of sound (v) in air by resonance tube method. resonance is observed to occur at two successive lengths of the air column, l1 ​= 30cm and l2 = 70cm. Then v is equal to:
07
Nov
A tuning fork of frequency 480Hz is used in an experiment for measuring speed of sound (v) in air by resonance tube method. resonance is observed to occur at two successive lengths of the air column, l1 ​= 30cm and l2 = 70cm. Then v is equal to: A tuning fork of frequency 480Hz is [...]
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Tags: A tuning fork of frequency 480Hz is used in an experiment for measuring speed of sound (v) in air by resonance tube method. resonance is observed to occur at two successive lengths of the air column , l1 ​= 30cm and l2 = 70cm. Then v is equal to: ,