Class 9 Exam > Class 9 Questions > A boy sitting in a boat fires a gun. An obser...
Start Learning for Free
A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observer
Q is a diver, who is 50 m under water. Both hear the sound of gun:
- a)P hears the sound first
- b)Q hears the sound first
- c)Both P and Q hear the sound at the same time
- d)none of the above.
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A boy sitting in a boat fires a gun. An observer P is at a distance of...
Explanation:
When a gun is fired, it produces a sound wave that spreads out in all directions. This sound wave travels through the air and water at different speeds, which means that the time taken for the sound to reach an observer on land and an observer underwater will be different.
Observer P hears the sound first:
If the sound travels faster through air than through water, then observer P will hear the sound first. This is because the sound wave will reach them before it reaches observer Q, who is underwater. However, this is not the case as sound travels faster through water than air.
Both P and Q hear the sound at the same time:
If the sound travels at the same speed through air and water, then both observers will hear the sound at the same time. This is because the sound wave will travel through both mediums at the same speed. However, this is also not the case as sound travels faster through water than air.
Observer Q hears the sound first:
As sound travels faster through water than air, observer Q, who is underwater, will hear the sound first. This is because the sound wave will travel through water and reach Q before it reaches P on land. Therefore, the correct answer is option 'B' - Q hears the sound first.
Conclusion:
The speed of sound is different in different mediums. When the sound wave travels through air and water, it travels at different speeds, which means that the time taken for the sound to reach observers on land and underwater will be different. In this case, as sound travels faster through water than air, observer Q, who is underwater, will hear the sound first.
When a gun is fired, it produces a sound wave that spreads out in all directions. This sound wave travels through the air and water at different speeds, which means that the time taken for the sound to reach an observer on land and an observer underwater will be different.
Observer P hears the sound first:
If the sound travels faster through air than through water, then observer P will hear the sound first. This is because the sound wave will reach them before it reaches observer Q, who is underwater. However, this is not the case as sound travels faster through water than air.
Both P and Q hear the sound at the same time:
If the sound travels at the same speed through air and water, then both observers will hear the sound at the same time. This is because the sound wave will travel through both mediums at the same speed. However, this is also not the case as sound travels faster through water than air.
Observer Q hears the sound first:
As sound travels faster through water than air, observer Q, who is underwater, will hear the sound first. This is because the sound wave will travel through water and reach Q before it reaches P on land. Therefore, the correct answer is option 'B' - Q hears the sound first.
Conclusion:
The speed of sound is different in different mediums. When the sound wave travels through air and water, it travels at different speeds, which means that the time taken for the sound to reach observers on land and underwater will be different. In this case, as sound travels faster through water than air, observer Q, who is underwater, will hear the sound first.
Free Test
FREE
| Start Free Test |
Community Answer
A boy sitting in a boat fires a gun. An observer P is at a distance of...
Sound travel faster in water than air because water has more density than air .so,it transfer sound wave faster than in air
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer?
Question Description
A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer?.
A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer?.
Solutions for A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A boy sitting in a boat fires a gun. An observer P is at a distance of 50 m from the boat. Another observerQ is a diver, who is 50 m under water. Both hear the sound of gun:a)P hears the sound firstb)Q hears the sound firstc)Both P and Q hear the sound at the same timed)none of the above.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup