Define wave vector and reciprocal vectors also write the relationship between velocity and reciprocal vectors.

Define wave vector and reciprocal vectors also write the relationship

1.	Define wave vector and reciprocal vectors also write the relationship between velocity and reciprocal vectors.
Answer» SOLUTION :The wave number is the MAGNITUDE of a vector called wave vector. The points in space of wave VECTORS are called reciprocal vectors, `veck`. Dimensions of `vec k` is `L^(-1)` Velocity, `v= LAMBDA, f=(lambda)/(2pi) (2pi f)` `=(2pi lambda)/(2pi//lambda)` `=(omega)/(k)`