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Regarding Earthquake waves, consider the following statements:
S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material.
P-waves arrive at the surface with some time lag and can travel only through solid materials.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Regarding Earthquake waves, consider the following statements: S-...
The correct answer is option 'D' - Neither 1 nor 2.
Explanation:
To understand why both statements are incorrect, let's first have a brief understanding of earthquake waves.
Earthquake Waves:
Earthquakes generate seismic waves that propagate through the Earth's crust. These waves are categorized into two main types: P-waves (primary waves) and S-waves (secondary waves).
P-Waves:
P-waves are also known as compressional waves or primary waves. They are the fastest seismic waves and can travel through solid, liquid, and gaseous materials. P-waves are characterized by a back-and-forth motion parallel to the direction of wave propagation. They compress and expand the material as they pass through it.
S-Waves:
S-waves are also known as shear waves or secondary waves. They are slower than P-waves and can only travel through solid materials. S-waves are characterized by a side-to-side motion perpendicular to the direction of wave propagation. They cause the material to move from side to side.
Now, let's assess the given statements:
Statement 1: S-waves are the first to arrive at the surface and can travel through gaseous, liquid, and solid material.
This statement is incorrect. S-waves are not the first to arrive at the surface during an earthquake. P-waves are the first to reach the surface. Additionally, S-waves cannot travel through gaseous or liquid materials. They can only propagate through solid materials.
Statement 2: P-waves arrive at the surface with some time lag and can travel only through solid materials.
This statement is also incorrect. P-waves do not arrive at the surface with a time lag. They are the fastest seismic waves and reach the surface before S-waves. Furthermore, P-waves can travel through solid, liquid, and gaseous materials.
Therefore, neither of the given statements is correct. P-waves are the first to arrive at the surface and can travel through solid, liquid, and gaseous materials. S-waves arrive after P-waves and can only travel through solid materials.
Explanation:
To understand why both statements are incorrect, let's first have a brief understanding of earthquake waves.
Earthquake Waves:
Earthquakes generate seismic waves that propagate through the Earth's crust. These waves are categorized into two main types: P-waves (primary waves) and S-waves (secondary waves).
P-Waves:
P-waves are also known as compressional waves or primary waves. They are the fastest seismic waves and can travel through solid, liquid, and gaseous materials. P-waves are characterized by a back-and-forth motion parallel to the direction of wave propagation. They compress and expand the material as they pass through it.
S-Waves:
S-waves are also known as shear waves or secondary waves. They are slower than P-waves and can only travel through solid materials. S-waves are characterized by a side-to-side motion perpendicular to the direction of wave propagation. They cause the material to move from side to side.
Now, let's assess the given statements:
Statement 1: S-waves are the first to arrive at the surface and can travel through gaseous, liquid, and solid material.
This statement is incorrect. S-waves are not the first to arrive at the surface during an earthquake. P-waves are the first to reach the surface. Additionally, S-waves cannot travel through gaseous or liquid materials. They can only propagate through solid materials.
Statement 2: P-waves arrive at the surface with some time lag and can travel only through solid materials.
This statement is also incorrect. P-waves do not arrive at the surface with a time lag. They are the fastest seismic waves and reach the surface before S-waves. Furthermore, P-waves can travel through solid, liquid, and gaseous materials.
Therefore, neither of the given statements is correct. P-waves are the first to arrive at the surface and can travel through solid, liquid, and gaseous materials. S-waves arrive after P-waves and can only travel through solid materials.
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Community Answer
Regarding Earthquake waves, consider the following statements: S-...
- Earthquake waves are basically of two types — body waves and surface waves. 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. There are two types of body waves. They are called P and S-waves. P-waves move faster and are the first to arrive at the surface. These are also called ‘primary waves. The P-waves are similar to sound waves. They travel through gaseous, liquid and solid materials. Hence, statement 1 is not correct.
- S-waves arrive at the surface with some time lag. These are called secondary waves. An important fact about S-waves is that they can travel only through solid materials. Hence, statement 2 is not correct.
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Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?
Question Description
Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?.
Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding Earthquake waves, consider the following statements: S-waves are the first to arrive at the surface and can travel through gaseous, liquid and solid material. P-waves arrive at the surface with some time lag and can travel only through solid materials. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?.
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