CGPET 2019 Solved Paper

Section: Physics
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Question : 50 of 150
 
Marks: +1, -0
Four light waves are represented by
(i) y=a1‌sin‌ω‌t
(ii) y=a2‌sin(ωt+ϕ)
(iii) y=a1‌sin‌2‌ω‌t
(iv) y=a2‌sin‌2(ωt+ϕ)
Interference fringes may be observed due to superimposition of
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