wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Two periodic waves of amplitudes A1 and A2 pass thorough a region. If A1 > A2, the difference in the maximum and minimum resultant amplitude possible is
(a) 2A1
(b) 2A2
(c) A1 + A2
(d) A1 − A2.

Open in App
Solution

(b) 2A2

We know resultant amplitude is given by
Anet=A12+A22+2A1A2cosϕ
For maximum resultant amplitude
Amax=A1+A2
For minimum resultant amplitude
Amin=A1-A2

So, the difference between Amax and Amin is
Amax-Amin=A1+A2-A1+A2=2A2

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon