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```				   Is there a difference when we use the formula  intensity is inversely proportional to (dist.)^2 And Net intensity= I1 + I2 + 2(I1*I2)^0.5 cos angle to calculate the net intensity at a point in ydse? please explain both these methods an the best for calculating intensity?
```

6 years ago

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```										relation with distance is used when we have to compare intensity in cases when distances are given...but formula is used to get exact intensity in a situation when only one case is given..i.e. intensity of sources undegoing interference and phase angle is provided.
```
6 years ago

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