अर्थ : A nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas. The simplest and lightest and most abundant element in the universe.

अर्थ : A unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second.

अर्थ : The constant of proportionality relating the energy of a photon to its frequency. Approximately 6.626 x 10^-34 joule-second.

अर्थ : The 8th letter of the Roman alphabet.

अर्थ : (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure.