Home » General Knowledge » GK Question “What Is The Barrier Of Sound?” general knowledge book English 2021 current affairs quiz and answers for class 7, 8, 9, 10, 12 students Exam.

GK Question “What Is The Barrier Of Sound?” general knowledge book English 2021 current affairs quiz and answers for class 7, 8, 9, 10, 12 students Exam.

What Is The Barrier Of Sound?

The name “sound barrier” is actually a wrong way to describe a condition that exists when planes travel at a particular speed. When the speed of sound is attained, a kind of barrier is expected, in actual no barrier developed.

Take a plane traveling at a slow speed. With the forward movement of the plane, the front parts send out a pressure wave, which is caused by the building up of particles of air.

Now the pressure wave goes out ahead of the plane at a speed of sound and is therefore moving faster than the speed of the plane, which is ordinary low. This pressure wave rushes ahead of the plane and causes smooth movement of air over the wing surface of the approaching plane.

Now in another case, the plane is traveling at sound’s speed. The air ahead receives no pressure wave in advance of the plane. The speed of the plane and pressure wave moving forward is the same and thus the pressure wave builds up in front of the wing.

The result is a shock wave, that creates great stresses in the plane wings. Before the plane actually flew at the speed of sound and faster, it was expected that these shock waves and stresses would create a kind of ‘barrier’, for the plane a ‘sound barrier. In actual it did not develop as the aeronautical engineers were able to design planes to overcome it.

A loud ‘boom’ is heard when a plane passes through the sound barrier and is caused by the shock waves. These shock waves develop when the speed of the plane and the pressure wave is the same.

Related posts:

What makes water evaporate? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10,...

General Knowledge

Do you know “Voices can levitate stones".

Do you know

Hindi Moral Story "Apna Hath Jaganath”, "अपना हाथ जगनाथ” for Kids, Full length Educational Story for...

General Knowledge

Why do camels have humps? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 1...

General Knowledge

What is Braille? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 ...

General Knowledge

Why were sauropods so huge? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10,...

General Knowledge

How does the fly see things? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10...

General Knowledge

GK Question "How The Sun Keeps Shining?" general knowledge book English 2021 current affairs quiz an...

General Knowledge

Is epilepsy a disease? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...

General Knowledge

How was alcohol discovered? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10,...

General Knowledge

GK Question "How Electricity Is Produced By A Battery?" general knowledge book English 2021 current ...

General Knowledge

Could the Mayans read and write? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...

General Knowledge

What is Zoroastrianism? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...

General Knowledge

GK Question "What Is Called "Oxygen"?" general knowledge book English 2021 current affairs quiz and ...

General Knowledge

GK Question "How The Fluorescent I Lights Work?" general knowledge book English 2021 current affairs...

General Knowledge

Can a porcupine shoot its quills? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...

General Knowledge

GK Question "How An Automobile Runs With Gasoline?" general knowledge book English 2021 current affa...

General Knowledge

Why do astronauts wear spacesuits? Complete General Knowledge Question and Answer for Class 6, 7, 8,...

General Knowledge

Who invented printing? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...

General Knowledge

Do you know “Indian airports ranked amongst the world's Top 5”.

Do you know

About

Leave a Reply

Your email address will not be published. Required fields are marked *

*
*

This site uses Akismet to reduce spam. Learn how your comment data is processed.