NEETPhysicsRay Optics
Four light sources produce the following four waves: (i) y₁=a ( t+ ₁ ) (ii) y₂=a 2 t (iii) y₃=a ( t+ ₂ ) (iv) y₄=a (3 t+ ) Superposition of which two waves give rise to interference?
Options
- A(i) and (ii)
- B(ii) and (iii)
- C(i) and (iii)
- D(iii) and (iv)
Correct answer
C. (i) and (iii)
Step-by-step solution
Inteference takes place between two waves having equal frequency and propagate in same direction. Hence, y₁=a ( t+ ₁ )y₃=a^ ( t+ ₂ ) same frequency .