Assertion A: Wave velocity and particle velocity for transverse wave are mutually perpendicular to each other.

Reason R: The wave velocity and particle velocity have a constant ratio of their magnitudes.

The particle velocity is the velocity of individual particles in the medium as they oscillate due to the wave passing through. In a transverse wave, the particles move perpendicular to the direction of wave propagation. The particle velocity and the wave velocity are perpendicular to each other.

$v_p=-v\cdot \left(slope\right)$

The ratio of wave velocity and particle velocity changes for different positions.