P, Q and R are three particles of a medium which lie on the x-axis. A sine wave of wavelength `lambda` is travelling through the medium in the x-direction. P and Q always have the same speed, while P and R always have the same velocity. The minimum distance between – (1) P and Q is `lambda` (2) P and Q is `lambda//2` (3) P and R is `lambda//2` (4) P and R is `lambda`A. `P` and `Q` is `lamda//2`B. `P` and `Q` is `lamda`C. `P` and `R` is `lamda//2`D. `P` and `R` is `lamda`

P, Q and R are three particles of a medium which lie on the x-axis. A

1.	P, Q and R are three particles of a medium which lie on the x-axis. A sine wave of wavelength `lambda` is travelling through the medium in the x-direction. P and Q always have the same speed, while P and R always have the same velocity. The minimum distance between – (1) P and Q is `lambda` (2) P and Q is `lambda//2` (3) P and R is `lambda//2` (4) P and R is `lambda`A. `P` and `Q` is `lamda//2`B. `P` and `Q` is `lamda`C. `P` and `R` is `lamda//2`D. `P` and `R` is `lamda`
Answer» Correct Answer - A::D

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