Physics
Physics, 18.10.2019 11:00, ravichandrareddybuss

1.why it is not possible to have 100 % efficienct in a .
2.what is critical angle. how it is related to refractove index.
3.state 2 conditions where the work done by a force is zero.
4.state the energy change in loud speaker and photosynthesis. 5.what are 2 essential conditions for total internal reflection.
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1.why it is not possible to have 100 % efficienct in a .
2.what is critical angle. how it is r...

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