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Home
Physics – 1
Numericals
Kinematics
Force
Vector Physics
Planetary Motion
Units & Measurements
Momentum
Energy
Rotational Motion
Sound
Physics – 2
Periodic Motion
Elasticity
Fluids
Thermal Physics
Current Electricity
Electrostatics
Geometric Optics
DC Circuits
Magnetodynamics
Physical Optics
Semiconductor Physics
Physics – 3
Class 9 Physics [Chapter and Topic wise]
class 9 & 10 – Selected
class 11 & 12 – Selected
Class 12 Physics NCERT solution
Physics Calculators
PDF Physics Notes
Physics Glossary
Physics Lab
Dimensional Formulas
Q&A Worksheet TestPaper
Leaving Cert
Microprocessor
Digital Electronics
Java
Other
Chemistry
Biology
The Tempest [Drama] ISC
WBJEE Q Sets (pdf)
Inspirational Quotes
About Us
About us
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Physics Categories
surface roughness
Friction – Definition, Source, and Cause
By
Anupam M
Friction – Definition, Source, and Cause
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