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Free download in PDF Geography MCQs on General Awareness with Answers or objective questions or quiz from chapter Geotectonics. It contains MCQs about seismic waves, S waves etc.
(11)
S Waves can pass through ________.
[A]
solids only
[B]
gases only
[C]
liquids only
[D]
all of the above
Comment
Answer: Option [A]
The correct answer is solids only. S waves can only travel through solids, and scientists have successfully mapped the earth's interior by studying the routes of these waves. P waves or Primary waves are the first waves to hit the seismographs when an earthquake strikes.
(12)
The _____Waves are said to the most damaging to humans.
Comment
Answer: Option [C]
The correct answer is L.
(13)
Vibrations radiate from focus in all direction as
[A]
Seismic waves
[B]
Transverse waves
[C]
Longitudinal waves
[D]
None of the above
Comment
Answer: Option [A]
Vibrations radiate from focus in all direction as Seismic waves. Body waves radiate outward from the focus in all directions and travel through solid rock. A P body wave (primary body wave) is a compressional (longitudinal) wave that induces the particles in the rock to vibrate back and forth in the same direction the wave moves.
(14)
The amount of ground displacement in an earthquake is called the _________
[A]
focus
[B]
slip
[C]
dip
[D]
none of the above
Comment
Answer: Option [B]
The correct answer is slip.
(15)
The _____Waves are the slowest.
Comment
Answer: Option [D]
The correct answer is L Waves. The slowest (and latest to arrive on seismograms) are surface waves, such as the L wave. L waves are named for the Cambridge mathematician A.E.H. Love who first described them. The surface waves are generally the largest recorded from an earthquake.
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