# Units of Physics

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Units of Physics

List of Physics Units

Fundamental Physics Units

SubjectsType of Questions
Paper 1 Physics, Chemistry & Mathematics Objective type questions with equal weightage to Physics, Chemistry & Mathematics
Paper 2 Mathematics – Part I
Aptitude Test – Part II &
Drawing Test – Part III
Objective type questions
Objective type questions
questions to test Drawing Aptitude

Supplementary Units YearNo.of.InstituteIntake
1994 - 9531226,874
2006 - 071,13294,704
%Growth263%290%

Fundamental Physics Units

• Important SI Units of Physics
• Newton : Force
• Joule : Work done
• Watt : Power
• Coulomb : Quantity of Electricity
• Volt : Potential difference
• Ohm : Electrical Resistance
• Henry : Inductance
• Lumen : Luminous Flux

Some Important Units of Long Distances

• Light year = Distance traveled by light in vacuum in one year = 9.46 x 1015 m ~ 1016 m.
• 1 Parsec ( Parallactic second ) is the distance corresponding to a parallex of one second of arc, 1 Parsec = 3.08 x 1016 m = 3.26 light years.

Some Important Units of Short Distances

• 1 micron ( 1 µ ) = 10-4 cm, 10 -6 m
• 1 Angstrom ( 1 Å ) = 10 -8 cm, 10 -10 m
• 1 Fermi ( 1F ) = 10 -13 cm, 10 -15 m
• 1 x U = 10 -11 cm, 10 -13 m 