Uses of Gold-Leaf Electroscope and the Electrophorus
Gold-Leaf Electroscope is one of the instruments used for testing positive and negative charges. It consisted of a metal rod, A to which gold leaves,…
Physics
Importance of Equipotentials in Electrostatic Fields
In discussing equipotentials, we must admit that the earth must have the same potential with all over, because it is a conductor. In a conductor,…
Interference Phenomenon In Thin Wedge Films
A very thin wedge of an air film can be formed by placing a thin piece of foil or paper between two microscope slides at…
How to Measure Wavelength Using Newton’s Rings
Newton discovered an example of interference which is known as “Newton’s rings”. In this case a lens L is placed on a sheet of plane…