ek and nova physics material discrepancies...!!

[blackandgold1]

Advertisement - Members don't see this ad

Hey guys, so i used the nova book to study for physics aka reteach myself everything. now that im done with nova ive been relearning/refreshing with ek physics about certain topics that i didnt understand very well. however, i found a discrepancy in the info both books provided and im not sure which one is correct

specific question: ek states that when dealing with waves, intensity is directly proportional to the square of amplitude and frequency, and it provides an equation from which this relationship is derived. however, in the sound chapter (chapter 12 i think) in nova, there is a specific question, at the end of the chapter, and novas answer key states that intensity has no relationship with the frequency of a wave.

im confused, which one is correct?

 

[ilovemcat]

Hey guys, so i used the nova book to study for physics aka reteach myself everything. now that im done with nova ive been relearning/refreshing with ek physics about certain topics that i didnt understand very well. however, i found a discrepancy in the info both books provided and im not sure which one is correct

specific question: ek states that when dealing with waves, intensity is directly proportional to the square of amplitude and frequency, and it provides an equation from which this relationship is derived. however, in the sound chapter (chapter 12 i think) in nova, there is a specific question, at the end of the chapter, and novas answer key states that intensity has no relationship with the frequency of a wave.

im confused, which one is correct?

I just discussed this in the Q&A thread a while back. EK is right, NOVA is wrong for this one. Even TPR says the same thing NOVA does for 1 question. Intensity is proportional to the square of Amplitude and Frequency, and also proportional to velocity of the wave.