A=22+42+2×2×4×cos120∘=12=23tanϕ=4+2cos120∘2sin120∘=33=31ϕ=6π
The amplitude and phase of a wave that is formed by the superposition of two harmonic travelling waves, y1(x,t)=4sin(kx−ωt) and y2(x,t)=2sin(kx−ωt+32π), are :
(Take the angular frequency of initial waves same as ω)
Held on 8 Apr 2025 · Verified 6 Jul 2026.
[6,32π]
[6,3π]
[3,6π]
[23,6π]
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