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A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.?
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A girl is sitting in middle of a park of dimensions 12m×12m.On the lef...
Answer:
If the time gap between the original sound and reflected sound received by the listener is around 0.1 s, only then the echo can be heard.
The minimum distance travelled by the reflected sound wave for the distinctly listening the echo
= Velocity of sound X Time interval
= 344 x 0.1 = 34.5 m
But in this case the distance travelled by the sound reflected from the building and then reaching to the girl will be (6 + 6) = 12 m, which is much smaller than the required distance. Therefore, no echo can be heard.
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A girl is sitting in middle of a park of dimensions 12m×12m.On the lef...
Is it possible for the girl to hear the echo of the sound?
Yes, it is possible for the girl to hear the echo of the sound in this scenario.
Explanation:
Park Dimensions:
The park has dimensions of 12m×12m. This means it is a square-shaped area with a total area of 144 square meters. The girl is sitting in the middle of the park.
Adjoining Building:
On the left side of the park, there is a building adjoining it. The presence of the building can affect the reflection and propagation of sound waves.
Adjoining Road:
On the right side of the park, there is a road adjoining it. The road can act as a reflective surface for the sound waves produced by the cracker.
Sound Propagation:
When the cracker produces a sound on the road, the sound waves travel in all directions, including towards the park and the building.
Reflection from the Building:
The sound waves that reach the building will interact with it. If the building has a smooth and reflective surface, it can reflect the sound waves back towards the park.
Reflection from the Road:
Similarly, the sound waves that reach the road can bounce off its surface and propagate back towards the park.
Path of the Reflected Sound Waves:
If the reflected sound waves from both the building and the road reach the girl in the park, she will be able to hear the echo of the sound.
Factors Influencing Echo:
Several factors can influence the ability of the girl to hear the echo, such as the distance between the girl and the building or road, the intensity of the sound produced by the cracker, and the presence of any obstacles or obstructions in the park.
Conclusion:
In summary, it is possible for the girl to hear the echo of the sound in the park if the sound waves produced by the cracker reflect off the building and the road and reach her position. The presence of the building and road adjoining the park can contribute to the reflection and propagation of sound waves, allowing the girl to hear the echo.
Yes, it is possible for the girl to hear the echo of the sound in this scenario.
Explanation:
Park Dimensions:
The park has dimensions of 12m×12m. This means it is a square-shaped area with a total area of 144 square meters. The girl is sitting in the middle of the park.
Adjoining Building:
On the left side of the park, there is a building adjoining it. The presence of the building can affect the reflection and propagation of sound waves.
Adjoining Road:
On the right side of the park, there is a road adjoining it. The road can act as a reflective surface for the sound waves produced by the cracker.
Sound Propagation:
When the cracker produces a sound on the road, the sound waves travel in all directions, including towards the park and the building.
Reflection from the Building:
The sound waves that reach the building will interact with it. If the building has a smooth and reflective surface, it can reflect the sound waves back towards the park.
Reflection from the Road:
Similarly, the sound waves that reach the road can bounce off its surface and propagate back towards the park.
Path of the Reflected Sound Waves:
If the reflected sound waves from both the building and the road reach the girl in the park, she will be able to hear the echo of the sound.
Factors Influencing Echo:
Several factors can influence the ability of the girl to hear the echo, such as the distance between the girl and the building or road, the intensity of the sound produced by the cracker, and the presence of any obstacles or obstructions in the park.
Conclusion:
In summary, it is possible for the girl to hear the echo of the sound in the park if the sound waves produced by the cracker reflect off the building and the road and reach her position. The presence of the building and road adjoining the park can contribute to the reflection and propagation of sound waves, allowing the girl to hear the echo.
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A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.?
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A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.? 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 girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.?.
A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.? 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 girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A girl is sitting in middle of a park of dimensions 12m×12m.On the left side of it,there is a building adjoining the park and on the right side of the park,there is a road adjoining the park.A sound is produced on the road by a cracker.Is it possible for the girl to hear the echo of the sound? Explain this example.?.
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