A shock wave is produced due to an earthquake which makes the buildings move in the direction of the shock wave. Which progressive wave would this be?

Explanation

The correct answer is Longitudinal wave because shock waves, such as those produced during an earthquake, cause the particles in the medium (like the ground) to oscillate in the same direction as the wave travels. This parallel movement of particles is characteristic of longitudinal waves. In contrast, Transverse waves have particle motion perpendicular to the wave direction, which does not apply to shock waves in this context. The term Material wave is too vague and does not specifically describe seismic waves, while Particle wave is not a recognized category in wave physics and does not provide a meaningful description of any wave type.