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Speed of super-sonic aircraft is...

Speed of super-sonic aircraft is

A

below speed of sound

B

equal to speed of sound

C

more than speed of sound

D

equal to speed of light.

Text Solution

AI Generated Solution

The correct Answer is:
To determine the speed of a supersonic aircraft, we need to understand the definition of "supersonic." Here's a step-by-step solution: ### Step 1: Understand the term "supersonic" - The term "supersonic" refers to speeds that are greater than the speed of sound. ### Step 2: Define the speed of sound - The speed of sound (Vs) varies depending on the medium (air, water, etc.) and conditions (temperature, pressure). In air at sea level and at 20°C, the speed of sound is approximately 343 meters per second (m/s). ### Step 3: Compare the speed of the aircraft (V) to the speed of sound (Vs) - For an aircraft to be classified as supersonic, its speed (V) must be greater than the speed of sound (Vs). Therefore, we can express this relationship as: \[ V > Vs \] ### Step 4: Evaluate the options provided - **Option 1:** Below the speed of sound - This describes subsonic speeds, which is incorrect. - **Option 2:** Equal to the speed of sound - This describes sonic speeds, which is also incorrect. - **Option 3:** More than the speed of sound - This is the correct definition of supersonic. - **Option 4:** Equal to the speed of light - This is unrelated to sound and incorrect. ### Step 5: Conclusion - The correct answer is **Option 3**, which states that the speed of a supersonic aircraft is more than the speed of sound. ---
To determine the speed of a supersonic aircraft, we need to understand the definition of "supersonic." Here's a step-by-step solution: ### Step 1: Understand the term "supersonic" - The term "supersonic" refers to speeds that are greater than the speed of sound. ### Step 2: Define the speed of sound - The speed of sound (Vs) varies depending on the medium (air, water, etc.) and conditions (temperature, pressure). In air at sea level and at 20°C, the speed of sound is approximately 343 meters per second (m/s). ...
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