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Home
All Subjects
CSS
CSS MPT
CSS Subjects MCQs
CSS Past Papers
Past Papers
Testing Agencies Papers
Departmental Past Papers
Post Wise Papers
Service Related MCQs
Departments Related MCQs
Service Commission
FPSC
PPSC
SPSC
BPSC
KPPSC
Current Affairs
National Current Affairs MCQs
International Current Affairs MCQs
Monthly Current Affairs MCQs
International Organizations MCQs
LAT Tests
LAT Past Paper
Army/Navy/Air force
Jobs Update
Mobile App
Entry Tests
Nursing Entry Tests
Subject:
Chemistry
Mach number is used in connection with the speed of___________?
A.
Ship
B.
Light
C.
Sound
D.
aircraft
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