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CBSE Class 9 Answered

Can blackbox pings signal travel 3000kms?

Can it be reflected on metal surface?

Asked by dwarakanathan.s | 19 Apr, 2020, 07:02: AM
Expert Answer
Flight recorders are also known as black box. Black box are designed in such a way that their signals can be detected at the range of 1.8 km. 
Also, black boxes emits an ultrasonic 'ping'. We know, that ultrasonic waves can be reflected by metal surfaces. 
Answered by Shiwani Sawant | 19 Apr, 2020, 04:13: PM
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