Question

A sine wave is travelling in a medium. The minimum distance between the two particles. always having same speed is

• A. $\lambda /4$
• B. $\lambda /3$
• C. $\lambda /2$
• D. $\lambda$

Answer 1

The correct option is C $\lambda /2$

In a sine wave particles that are separated by a distance of odd multiple of half

the wave length move with same speed and but in opposite direction.

The minimum separation is $\frac{\lambda }{2}$

Option C.