Four light sources produce the following four waves : (\i) \y_{1}=\a \sin (\\omega\t+\ϕ_{1}) (\ii) \y_{2}=\a \sin 2\\omega\t (\iii) \y_{3}=\a \sin (\\omega\t+\ϕ_{2}) (\iv) \y_{4}=\a \sin (3\\omega\t+\ϕ) Superposition of which two waves give rise to interference ?

Correct Answer is : (i) and (iii)

VITEEE 2009 Paper

Question : 22 of 120

Marks: +1, -0

Four light sources produce the following four waves :
(i)‌‌‌‌y1=a‌sin(ωt+ϕ1)‌‌‌‌‌(ii)‌y2=a‌sin‌2‌ω‌t
(iii)‌‌y3=a‌sin(ωt+ϕ2)‌‌‌‌‌(iv)‌y4=a‌sin(3ωt+ϕ)
Superposition of which two waves give rise to interference ?

(i) and (ii)
(ii) and (iii)
(i) and (iii)
(iii) and (iv)

Validate

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