AP EAPCET 19-Aug-2021 Shift 1 Paper

The sources of sound A and B produce a wave of 350‌Hz in same phase. A particle P is vibrating under an influence of these two waves. If the amplitudes at P produced by the two waves is 0.3‌mm and 0.4‌mm, the resultant amplitude of thepoint P will be, when AP−BP=25‌cm and the velocity of sound is 350ms−1,