Table of Contents
Charging of Insulators
Since charge cannot flow through insulators, neither conduction nor induction can be used to charge, insulators, so in order to charge an insulator friction is used. Whenever an insulator is rubbed against a body exchange of electrons takes place between the two. This results in appearance of equal and opposite charges on the insulator and the other body. Thus the insulator is charged.
For example rubbing of plastic with fur, silk with glass causes charging of these things.
-
Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
-
WAVE FRONT, VARIOUS TYPES OF WAVE FRONT AND RAYS
Last modified on:5 years agoReading Time:5MinutesWAVE FRONT, VARIOUS TYPES OF WAVE FRONT AND RAYS • Wavefront The locus of all the particles vibrating in the same phase is known as wavefront. or It is the continuous locus of all such particles of the medium which are vibrating in the same phase of oscillation at any instant.…
-
Wave Theory of Light
Last modified on:5 years agoReading Time:12MinutesLIGHT The physical cause, with the help of which our eyes experience the sensation of vision, is known as light or the form of energy, which excites our retina and produce the sensation of vision, is known as light. PROPERTIES OF VISIBLE LIGHT • No material medium is required for the…
-
CBSE 12 Physics Topic-wise error analysis
Last modified on:5 years agoReading Time:1Minute
