Physics

Potentiometer is an accurate device that is used to measure or compare the potentials without drawing any current from the circuit.

A sound wave is a pressure disruption that travels through a medium by means of particle-to-particle interaction.

Thermodynamics is the branch of physics that describes the macro range properties of a fluid. One of the principal results of the study of thermodynamics is the conservation of energy.

Radioactivity is the phenomenon of the spontaneous disintegration of unstable atomic nuclei to form more energetically stable atomic nuclei.

Bohr in 1913 proposed the atomic model for Hydrogen atoms to explain the empirical results of Rydberg. He used both classical as well as quantum physics for his explanation of the model of the hydrogen atom.

The 2nd law of thermodynamics offers us the key for both understanding our environmental crisis and also for comprehending exactly how we should handle this dilemma.

The devices which are used to detect nuclear radiations like α- particles, β- particles, γ- rays, electromagnetic and light radiations are called radiation detectors.

An apparatus for recording and measuring spectra, particularly as an approach of analysis. A spectrometer is a scientific tool used to split light into an array of various colors, called a spectrum.

The Earth and some other planets revolve around the sun in nearly circular paths. The artificial satellites launched by men also adopt nearly circular courses around the Earth.

A diffraction grating is a glass plate having numerous close parallel equidistant slits mechanically ruled on it. The transparent spacing between the scratches on the glass plate act as slits.