SSC CGL Science & Technology — practice questions

Explore 1 free Science & Technology questions in SSC CGL General Awareness. Open each question or exercise to read its content, reference answers and available explanation.

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Science & Technology questions and exercises with answers

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The Mach number of a moving object is defined as its speed divided by what?Read the answer and worked solution →

Worked practice questions

The Mach number of a moving object is defined as its speed divided by what?

The speed of light
Its own acceleration
The time of travel
The speed of sound

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Correct answer: D. The speed of sound

Mach number compares an object's speed with the local speed of sound.

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