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Grade 12Wave Motion

if any wave is reflected by an obstacle and ratio of amplitude of antinode to the node is 8. the percentage of energy that is transmitted is?

Profile image of B.R. BIRLA PUBLIC SCHOOL CBAT
15 Years agoGrade 12
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1 Answer

Profile image of praneeth bonu
14 Years ago

A1+A2/A1-A2=8

A1/A2=9/7

ENERGY PROP. TO AMPLITUDE^2

SO,% of energy transmitted =[9/7]^2multiplyed by 100