Multiple choice

The direction of vibrations of S-waves

  1. is perpendicular to the wave direction in the vertical plane

  2. is parallel to the direction of the wave

  3. changes as they travel through materials with different densities

  4. causes a larger shadow zone that is a little over 40 per cent of the earth surface

  5. interacts with the surface rocks and generates a new set of waves called body waves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct answer. The direction of vibrations of S-waves is perpendicular to the wave direction in the vertical plane. Hence, they create troughs and crests in the material through which they pass.

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