Introduction to Physics

p-type Semiconductor If trivalent elements like gallium, aluminum etc. impurities are mixed in intrinsic germanium or silicon in a small amount and in a controlled…

n-type Semiconductor Pentavalent elements are mixed with germanium or silicon semiconductor to produce n-type semiconductor. Pentavalent antimony or arsenic is mixed at high temperature by…

The concept about Electron and Hole At room temperature electron and hole are produced in the pair in an intrinsic semiconductor. When an electric field…

n-type and p-type Materials are Electrically Neutral n-type and p-type semiconductors it is known that from pure or intrinsic germanium or silicon in what type…

Ideas about Conductor, Insulator, and Semiconductor Substances which we come across are mainly of three types, viz. solid, liquid and gases. According to the variation…

Thomson’s Atom Model Famous English scientist Joseph J. Thomson after the discovery of electrons in 1897 presented a model about the structure of the atom.…

Stopping Potential: The smallest magnitude of the anode potential which just stops the photoelectric current is called the stopping potential. The potential difference that we…

Threshold Frequency: In case of emission of photoelectrons there is a minimum frequency which is called the threshold frequency. It is the minimum frequency of…

Photoelectric Work Function: The amount of energy needed to emit the electron from the attraction of the nucleus of the emitter is called the photoelectric…

Time Dilation: A clock in a moving frame will measure slower time compared to that in a clock in a stationary frame of reference i.e.,…