Physics Question and answer
Which instrument is used to detect objects using radio waves?
Radar
Science One Liner Questions with Answers
Practice exam-ready one liner questions for Science. Each page includes quick answers, topic tags, and easy navigation for faster SSC, Railway, Banking, and other competitive exam revision.
Total Questions: 141
Physics Question and answer
Which SI unit is used to measure work?
Joule
Physics Question and answer
Which physical quantity is measured only by magnitude?
Speed
Physics Question and answer
Which instrument is used to measure rotational speed of a wheel?
Tachometer
Physics Question and answer
Which quantity includes both magnitude and direction?
Velocity
Units & Measurements
What is the SI unit of magnetic permeability?
All of these
Units & Measurements
Match the quantity 'acceleration' with its correct SI unit.
Meter per second squared
Units & Measurements
Parsec is a unit of which quantity?
Distance
Units & Measurements
What is the unit of electric charge?
Coulomb
Units & Measurements
Candela is the SI unit of which quantity?
Luminous intensity