Introduction to Physics

Electrocardiogram (E.C.G) The electrocardiogram (ECG) is the graphical representation of various changes of electrical potential in the heart (cardiac muscle fiber) during the cardiac cycle…

Max Planck was a famous physicist of Germany. He discovered quantum theory in 1900. Planck made many contributions to theoretical physics, but his fame rests…

Contribution of Sir Isaac Newton in Successive Development of Modern Science Newton (1642-1727): Why does a body fall on the ground? People had also interest…

The contribution of Michael Faraday in Successive Development of Modern Science Faraday was well known for his research activities in magnetism and electricity. He was a…

Contribution of Lord Rutherford in Successive Development of Modern Science Rutherford is known father of Nuclear Science. Until nineteenth century scientists had the idea that atom…

Fundamental and Derived Unit There is innumerable physical quantifies in physics each of which has its own unit. But almost all the units of physical…

Space, Time and Mass in Physics Classical mechanics is known as Newtonian mechanics. In this mechanics concept of three fundamental quantities have been considered. These…

The telescope is an astronomical type. It consists of an eyepiece provided with cross wires at one end of the tube and an objective lens…

The collimator is an arrangement to produce a parallel beam of light. It consists of a long cylindrical tube with a convex lens at the…

The spectrometer is an optical instrument used to study the spectra of different sources of light and to measure the refractive indices of materials (Fig).…