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  1. Home
  2. |Science
  3. |One Liner Questions

Science One Liner Questions with Answers

Practice exam-ready one liner questions for Science with quick answers for SSC, Railway, Banking and competitive exams.

Total Questions: 286

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

Units & Measurements

Parsec is a unit of which quantity?

Distance

Units & Measurements

What is the unit of electric charge?

Coulomb

Modern Physics

Where is the energy produced by a controlled chain reaction used?

Nuclear Reactor

Modern Physics

In an uncontrolled chain reaction what is the sequence of neutrons released after each fission?

1, 3, 9, 27, 81...

Heat

What happens to the cooling in a refrigerator if the freezer (ice compartment) fails?

Cooling becomes very poor

Heat

What is the total radiation pyrometer based on?

Stefan's law

Light (Optics)

On which principle is the wave-particle duality and Compton effect of light explained?

Photon (quantum) theory

Light (Optics)

Who explained the photoelectric effect?

Einstein

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