# Index of physics articles (I)

The index of physics articles is split into multiple pages due to its size.
To navigate by individual letter use the table of contents below.

## Index of physics articles

* 0–9
* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

## I

* I. M. Dharmadasa
* IBM Zurich Research Laboratory
* ICARUS (experiment)
* ICRANet
* IEEE Antennas & Propagation Society
* IEEE Antennas and Wireless Propagation Letters
* IEEE Council on Superconductivity
* IEEE Electron Devices Society
* IEEE Fellow
* IEEE Journal of Quantum Electronics
* IEEE Journal of Selected Topics in Quantum Electronics
* IEEE Marie Sklodowska-Curie Award
* IEEE Microwave Magazine
* IEEE Microwave and Guided Wave Letters
* IEEE Microwave and Wireless Components Letters
* IEEE Nikola Tesla Award
* IEEE Photonics Award
* IEEE Transactions on Antennas and Propagation
* IEEE Transactions on Applied Superconductivity
* IEEE Transactions on Electron Devices
* IEEE Transactions on Microwave Theory and Techniques
* IEEE Transactions on Semiconductor Manufacturing
* IFAE
* IGNITOR
* II-VI semiconductor
* IKAROS
* INAF
* INDO
* IR/UV mixing
* ISABELLE
* ISIS neutron source
* ISKRA lasers
* ISOLDE
* ISOLTRAP
* ISO 31
* ISO 31-13
* ISO 31-3
* ISO 31-4
* ISO 31-5
* ISO 31-6
* ISO 31-7
* ISO 31-8
* ISO 31-9
* ITER
* IZMIRAN
* Ian Fells
* Ian G. Enting
* Ian Grant (physicist)
* Ice
* IceCube Neutrino Observatory
* Ice II
* Ice III
* Ice IX
* Ice Ic
* Ice Ih
* Ice VII
* Ice VIII
* Ice XI
* Ice XII
* Ice XV
* Ice crystals
* Ice nucleus
* Ice rules
* Ichiji Tasaki
* Ida Noddack
* Ideal gas
* Ideal gas law
* Ideal solution
* Ideally hard superconductor
* Identical particles
* IEEE Microwave and Guided Wave Letters
* Igal Talmi
* Ignace-Gaston Pardies
* Ignacij Klemenčič
* Igor Dmitriyevich Novikov
* Igor Klebanov
* Igor Kurchatov
* Igor Sutyagin
* Igor Tamm
* Igor Ternov
* Il Cimento
* Il Nuovo Cimento
* Il Nuovo Cimento A
* Il Nuovo Cimento B
* Il Nuovo Cimento C
* Il Nuovo Cimento D
* Ille Gebeshuber
* Illuminance
* Ilya Frank
* Ilya Lifshitz
* Ilya Prigogine
* Image-based flow visualization
* Image noise
* Imaginary time
* Imaging spectrometer
* Imbert–Fedorov effect
* Immersed boundary method
* Immersion lithography
* Immirzi parameter
* Immittance
* Immunophysics
* Impact (mechanics)
* Impact ionization
* Impact parameter
* Impact pressure
* Impedance of different devices (derivations)
* Impedance of free space
* Impeller
* Implicate and explicate order according to David Bohm
* Implosion (mechanical process)
* Impulse (physics)
* InHour
* In Search of Schrödinger's Cat
* Incandescence
* Inch of water
* Incoherent scatter
* Incompatible observables
* Incompleteness of quantum physics
* Incompressible flow
* Independent electron approximation
* Index-matching material
* Index of engineering science and mechanics articles
* Index of optics articles
* Index of physics articles
* Index of radiation articles
* India-based Neutrino Observatory
* Indian National Physics Olympiad
* Indian Physical Society
* Indicator diagram
* Indira Gandhi Centre for Atomic Research
* Indium arsenide antimonide phosphide
* Indium gallium arsenide
* Indium gallium phosphide
* Indium nitride
* Induced gamma emission
* Induced gravity
* Induced metric
* Inductance
* Induction heating
* Inductive charging
* Inductive coupling
* Inductively coupled plasma
* Inductively coupled plasma atomic emission spectroscopy
* Inductively coupled plasma mass spectrometry
* Industrial radiography
* Inelastic collision
* Inelastic mean free path
* Inelastic scattering
* Inert-pair effect
* Inertance
* Inertia
* Inertia coupling
* Inertia negation
* Inertia wheel pendulum
* Inertial confinement fusion
* Inertial electrostatic confinement
* Inertial frame of reference
* Inertial fusion power plant
* Inertial space
* Inertial wave
* Inexact differential
* Infiltration (hydrology)
* Infinitesimal strain theory
* Infinity correction
* Infinity focus
* Inflation (cosmology)
* Inflationary epoch
* Inflaton
* Information processing
* Infragravity wave
* Infralateral arc
* Infraparticle
* Infrared
* Infrared Physics and Technology
* Infrared cut-off filter
* Infrared divergence
* Infrared fixed point
* Infrared multiphoton dissociation
* Infrared thermometer
* Infrared window
* Infrasound
* Inge Lehmann
* Inge Schmitz-Feuerhake
* Inglis–Teller equation
* Ingrid Daubechies
* Inhomogeneous
* Inhomogeneous electromagnetic wave equation
* Initial mass function
* Initial singularity
* Initial stability
* Initial value formulation (general relativity)
* Injection kicker magnets
* Injection seeder
* Injector
* Insect flight
* Insertion device
* Insertion time
* Inspiral
* Inspirator
* Instability
* Instant
* Instant Physics
* Instant centre of rotation
* Instantaneous acceleration
* Instanton
* Instanton fluid
* Institut Laue–Langevin
* Institut d'astrophysique de Paris
* Institut de Physique du Globe de Paris
* Institute for High Energy Physics
* Institute for Nuclear Research
* Institute for Physical Problems
* Institute for Plasma Research
* Institute for Quantum Computing
* Institute for Radium Research, Vienna
* Institute for Science and International Security
* Institute for Telecommunication Sciences
* Institute for Transuranium Elements
* Institute of Acoustics, Chinese Academy of Sciences
* Institute of Acoustics (United Kingdom)
* Institute of Astronomy of the Russian Academy of Sciences
* Institute of Atmospheric Physics AS CR
* Institute of Electrical and Electronics Engineers
* Institute of High Energy Physics
* Institute of Physics
* Institute of Physics and Engineering in Medicine
* Institute of Sound and Vibration Research
* Institute of Space Physics (Sweden)
* Instituto de Plasmas e Fusão Nuclear
* Integrable system
* Integral of motion
* Integrated fluidic circuit
* Integrated optical circuit
* Integrating sphere
* Intense Pulsed Neutron Source
* Intensity (physics)
* Intensive and extensive properties
* Interacting boson model
* Interaction
* Interaction-free measurement
* Interaction energy
* Interaction picture
* Interaction point
* Interface conditions for electromagnetic fields
* Interference (wave propagation)
* Interference filter
* Interferometric gravitational wave detector
* Interferometry
* Intermediate-mass black hole
* Intermittency
* Intermodulation
* Intermodulation interference
* Intermolecular force
* Internal conversion
* Internal conversion coefficient
* Internal energy
* Internal flow
* Internal gravity waves
* Internal rotary inspection system
* Internal wave
* International Academy of Astronautics
* International Aerospace Abstracts
* International Association of Mathematical Physics
* International Centre for Diffraction Data
* International Centre for Synchrotron-Light for Experimental Science Applications in the Middle East
* International Commission for Optics
* International Commission on Non-Ionizing Radiation Protection
* International Conference on Differential Geometric Methods in Theoretical Physics
* International Conference on High Energy Physics
* International Conference on Photonic, Electronic and Atomic Collisions
* International Conference on the Physics of Semiconductors
* International Congress on Mathematical Physics
* International Cosmic Ray Conference
* International Fusion Materials Irradiation Facility
* International Geomagnetic Reference Field
* International Heliophysical Year
* International Journal for Numerical Methods in Fluids
* International Journal of Geometric Methods in Modern Physics
* International Journal of Modern Physics
* International Journal of Modern Physics A
* International Journal of Modern Physics B
* International Journal of Modern Physics C
* International Journal of Modern Physics D
* International Journal of Modern Physics E
* International Journal of Nanoscience
* International Journal of Theoretical Physics
* International Linear Collider
* International Liquid Crystal Society
* International Muon Ionization Cooling Experiment
* International Nathiagali Summer College on Physics
* International Physics Olympiad
* International Society on General Relativity and Gravitation
* International Standard Atmosphere
* International System of Units
* International Union of Geodesy and Geophysics
* International conference on Physics of Light–Matter Coupling in Nanostructures
* Interplanetary medium
* Interplanetary scintillation
* Interplanetary Transport Network
* Interpretations of quantum mechanics
* Intersecting Storage Rings
* Interstellar travel
* Intersubband polariton
* Interval (time)
* Intrabeam scattering
* Intracule
* Intrinsic hyperpolarizability
* Intrinsic impedance
* Intrinsic redshift
* Intrinsic semiconductor
* Intrinsic viscosity
* Introduction to Dirac's constant
* Introduction to M-theory
* Introduction to angular momentum
* Introduction to eigenstates
* Introduction to entropy
* Introduction to gauge theory
* Introduction to general relativity
* Introduction to particles
* Introduction to quantum mechanics
* Introduction to the mathematics of general relativity
* Invariant (physics)
* Invariant interval
* Invariant latitude
* Invariant mass
* Invariant measure
* Invariant speed
* Invention of radio
* Inverse Doppler effect
* Inverse Faraday effect
* Inverse Problems
* Inverse Raman effect
* Inverse dynamics
* Inverse gas chromatography
* Inverse magnetostrictive effect
* Inverse scattering problem
* Inverse scattering transform
* Inverse temperature
* Inversion temperature
* Inversion transformation
* Inverted microscope
* Inverted pendulum
* Inviscid flow
* Ioffe Institute
* Ion-mobility spectrometry
* Ion acoustic wave
* Ion beam
* Ion drift meter
* Ion laser
* Ion notation
* Ion optics
* Ion source
* Ion thruster
* Ion track
* Ion trap
* Ion wind
* Ionic liquid piston compressor
* Ionic polarization
* Ionic potential
* Ionising Radiations Regulations 1999
* Ionization
* Ionization chamber
* Ionization cooling
* Ionization energy
* Ionization gauge
* Ionized-air glow
* Ionizing radiation
* Ionocraft
* Ionogram
* Ionosonde
* Ionosphere
* Ionospheric heater
* Ionospheric pierce point
* Ionospheric storm
* Iosif Khriplovich
* Iraj Malekpour
* Iranian Journal of Physics Research
* Iron oxide nanoparticles
* Iron peak
* Irradiance
* Irradiation
* Irreversible process
* Irvine Clifton Gardner
* Irvine–Michigan–Brookhaven (detector)
* Irving Langmuir
* Irwin G. Priest
* Isaac Abella
* Isaac Chuang
* Isaac Newton
* Isaac Newton Medal
* Isaac Starr
* Isaak Kikoin
* Isaak Markovich Khalatnikov
* Isaak Pomeranchuk
* Isabella Karle
* Isenthalpic process
* Isentropic process
* Ishfaq Ahmad
* Ishrat Hussain Usmani
* Isidor Isaac Rabi
* Isidor Sauers
* Ising critical exponents
* Ising model
* Island growth
* Island of inversion
* Island of stability
* Ismail Akbay
* İsmail Hakkı Duru
* Isobaric process
* Isochoic wave
* Isochoric process
* Isochronous cyclotron
* Isoclinic line
* Isodiapher
* Isodynamic line
* Isoenthalpic process
* Isoenthalpic–isobaric ensemble
* Isogon (geomagnetism)
* Isolated system
* Isolation booth
* Isolator (microwave)
* Isomeric nuclide
* Isomeric shift
* Isomeric transition
* Isopleths
* Isopotential map
* Isoscalar
* Isospin
* Isothermal flow
* Isothermal process
* Isothermal titration calorimetry
* Isothermal–isobaric ensemble
* Isotone
* Isotope
* Isotope-ratio mass spectrometry
* Isotope analysis
* Isotope geochemistry
* Isotope separation
* Isotopic abundance
* Isotopic ratio
* Isotopic shift
* Isotopically pure diamond
* Isotropic coordinates
* Isotropic radiation
* Isotropic radiator
* Isovector
* Istituto Nazionale di Fisica Nucleare
* Italian Physical Society
* Itzhak Bars
* Ivan A. Getting
* Ivan K. Schuller
* Ivan Pulyui
* Ivan Supek
* Ivan Wilhelm
* Ivar Giaever
* Ivar Waller
* Ives–Stilwell experiment
* Iwahashi Zenbei
* Izuo Hayashi