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…
Physics
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…
How to Measure Wavelength Using Young’s Interference Bands
A laboratory experiment to measure wavelength by Young’s interference bands is shown in the diagram below. Light from a small filament lamp is focused by…
How to Measure Illumination Using the Lummer-Brodhun Photometer
Before we begin to explain the Lummer – Brodhun Photometer, lets first explain what a Photometer is. A photometer is an instrument which can be…
Application of Luminous Energy in Light Measurement
Light is a form of energy which stimulates the sensation of vision. The sun emits a continuous stream of energy, consisting of ultra-violet, visible, and…
Application of Simple Harmonic Motion and Electrical Oscillations
Simple harmonic motion (S.H.M.) occurs when the force acting on an object or system is directly proportional to its displacement x from a fixed point…
Differences Between Infrared and Ultraviolet Radiations
The radiant energy which Herschel found beyond the red is now called infra-red radiation, because it is less refracted than the red. Radiant energy is…
Application of Electromotive Force in Electricity Generation
A constant potential difference across terminals of a circuit that produces steady current is known as Electromotive force. This electromotive force and the principles underlining…
10 Important Uses of Radioactive Isotopes
Use of Radioactive Isotopes. Naturally occurring radium has been used for some time in radiotherapy, particularly in the treatment of cancer, and the y-rays from…
5 Methods Used in the Detection and Measurement of Radiation and Radioactivity
The detection and measurement of the various sorts of radiation associated with radioactivity is very important both for research purposes and in order to ensure…