NEET 2020 Model Question Paper 1

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Question : 36 of 180
 
Marks: +1, -0
Two waves represented by y1=a‌sin‌
2Ï€
λ
(vt−x)
and y2=a‌cos‌
2Ï€
λ
(vt−x)
are superposed. The resultant wave has an amplitude equal to :-
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