Physics Tables

 Physics Tables 

[1] Table of Physical Constants  :

Name	Symbol	Value
Electron Rest Mass	me	9.109 × 10−31 kg
Proton Rest Mass	Mp	1.6726 × 10−27 kg
Electronic Charge	e	1.6022 × 10−19 C
Speed Of Light In Free Space	c	2.9979 × 108 m s−1
Permeability Of Free Space	µ0	4π× 10−7 H m−1
Permittivity Of Free Spac	ε0	8.854 × 10−12 F m−1
Planck’s Constant	h	6.626 × 10−34 J s
Boltzmann’s Constant	kB	1.3807 × 10−23 J K−1
Gas Constant	R = kB/mH	8.250 × 103 J kg−1 K−1
Molar Gas Constant	R	8.315 J mol−1 K−1
Avogadro’s Number	NA	6.022 × 1023 mol−1
Mass Of Hydrogen Atom	mH	1.0078u = 1.6735 × 10−27 kg
Bohr Magneton	µB	9.274 × 10−24 A m2 or J T−1
Nuclear Magneton	µN	5.051 × 10−27 A m2 or J T−1
Proton Magnetic Moment	µp	2.7928µN
Neutron Magnetic Moment	µn	-1.9130µN
Bohr Radius	a0	5.292 × 10−11 m
Compton Wavelength Of Electron	λC = h/(mec)	2.4263 × 10−12 m
Rydberg’s Constant	R∞	1.0974 × 107 m−1
Stefan-Boltzmann Constant	σ	5.671 × 10−8 W m−2 K−4
Radiation Density Constant	a = 4σ/c	7.561 × 10−16 J m−3 K −4
Gravitational Constant	G	6.673 × 10−11 N m2 kg−2

[2] Astrophysical Info :

Name	Symbol	Value
1 astronomical unit	AU	1.496 × 1011 m
1 parsec	pc	3.086 × 1016 m
Luminosity of Sun	L⊙	3.85 × 1026 W
Mass of Sun	M⊙	1.989 × 1030 kg
Radius of Sun	R⊙	6.96 × 108 m
Mass of Earth	ME	5.9742 × 1024 kg
Radius of Earth	RE	6.3781 × 106 m

[3] Some Other data and conversion factors :

- 1 ˚angstrom  - ˚A  - 10⁻¹⁰ m

- 1 fermi - fm - 10⁻¹⁵ m

- 1 barn - b - 10⁻²⁸ m²

- 1 pascal - Pa - 1 Nm⁻²

- 1 standard atmosphere - 1.0132 × 10⁵ Pa

- Standard acceleration due to gravity -  g - 9.807 m s⁻²

- 1 electron volt -  eV - 1.6022 × 10−¹⁹ J

- Wavelength of 1 eV photon - 1.2399 × 10⁻⁶ m

[4] Trigonometrical identities :

- sin(θ + φ) = sin(θ) cos(φ) + cos(θ) sin(φ)

- cos(θ + φ) = cos(θ) cos(φ) − sin(θ) sin(φ)

- sin α + sin β = 2 sin 1/2 (α + β) cos 1/2 (α − β)

- cos α − cos β = 2 sin 1/2 (α + β) sin 1/2 (β − α)

- In a triangle ABC,

  a/ sin A = b/ sin B = c/ sin C

and a² = b² + c² − 2bc cos A