Friday, December 30, 2016

General Knowledge Question 3

The supersonic speed of an aeroplane is measured in-
Decibel
Mach Number
Hertz
All of these


Answer: Mach Number

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General Knowledge Question 1

Which of the following is the speed of Sound in Glass? 1000 m/s 2500 m/s 5056 m/s 8039 m/s