Consider the following differences between body waves and surface waves during an earthquake 1 While...........

Geography Geomorphology

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Consider the following differences between

body waves and surface waves during an

earthquake:

1. While Body waves are generated due to the release of energy at the focus,

Surface waves are generated on account of the interaction of body waves with

surface rocks.

2. Body waves are last to reach seismograph and more destructive as

compared to the surface waves

Which of the statements given above is/are

correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Earthquake waves are basically of two types - body waves and surface waves.
•Statement 1 is correct: Body waves are generated due to the release of energy at the focus and move in all directions travelling through the body of the earth. Hence, the name body waves. The body waves interact with the surface rocks and generate a new set of waves called surface waves. These waves move along the surface. Hence,
.
• Statement 2 is not correct: The Surface waves are the last to report on a seismograph. These waves are more destructive as compared
to Body waves. They cause displacement of rocks, and hence, the collapse of structures occurs.