Physics
Grade-8
Easy
Question
Sonic boom is a phenomenon caused by the sound emitting objects moving at _____.
- A supersonic speed
- A speed equal to the speed of sound in that medium
- A speed less than the speed of sound
- Any speed
Hint:
The sonic boom is the phenomenon caused by a sound-emitting object when it moves at a supersonic speed.
The correct answer is: A supersonic speed
- A sonic boom is caused when a sound-emitting object moves faster than the sound travels in a medium.
- The speed supersonic wave is greater than the speed of the sound.
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