If two waves each of intensity I having the same frequency but differing by a constant phase angle of 60 ,superimposing at a certain point in space then the intensity of the resultant wave is

Dear student,

As both have  identical intensityResultant intensityI' = I +I +2I×I cos60I' =2I+2I×I ×12I' =2I+II' =3I

Regards
 

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