Two waves of the same frequency and intensity superimpose with each other in opposite phases. Then after superposition the ……
A. intensity increases to four times
B. intensity increase to two times
C. frequency increases to four times
D. none of the above
Answer:D
Two waves of the same frequency and intensity superimpose with each other in opposite phases. Then after superposition the ……
A. intensity increases to four times B. intensity increase to two times C. frequency increases to four times D. none of the above