Physics
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 with quick answers for SSC, Railway, Banking and competitive exams.
Total Questions: 316
Physics
Which SI unit is used to measure work?
Joule
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
Modern Physics
What is nuclear fusion?
Combining two light nuclei to form a heavier nucleus
Heat
Which refrigerant is used in large cold storage (commercial refrigeration)?
Ammonia (NH₃)
Heat
Which refrigerant is used in domestic (household) refrigerators?
CFC (Chlorofluorocarbon)
Light (Optics)
What is the nature of light?
Dual nature — both wave and particle
Light (Optics)
On which principle is the reflection refraction and straight-line propagation of light explained?
Electromagnetic wave theory
Nutrition Questions and Answers
What are essential amino acids?
Amino acids the body cannot synthesize adequately