A modulus of elasticity of the wire, called Young’s modulus (E), is defined as the ratio It should be noted that Young’s modulus , […]
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Applications of Reverberations, Acoustics and Sabine Investigations
A concert-hall, lecture-hall, or a broadcasting studio requires special design to be acoustically effective. The technical problems associated with yhe application of reverberations and acoustics […]
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How to Measure the Velocity of Sound in Free Air Using Hebb’s Method
In 1905 Hebb carried out an accurate experiment to determine the velocity of sound in free air which used a method of interference. He carried out […]
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Observation of Reflection and Refraction with a Thermopile
What is a thermopile? A thermopile is a set of thermocouples that has been designed and arranged to measure little quantities of radiation or radiant […]
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The Linde Process and its Significance in Gas Cooling
Description of the Linde Process in the Cooling of Gases The cooling of a gas in a free expansion is small but Linde in his […]
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How Does a Refrigerator Work? How are Gases Liquefied?
The science behind how a refrigerator works is a novel area of study that physicists have continued to improve upon, delivering very efficient and smart […]
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Hypsometer and the Effect of Altitude On Boiling Point
The pressure of the atmosphere decreases with increasing height above the earth’s surface, because the thickness, and therefore the weight, of the belt of air […]
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Detailed Description of Resonance in Sound and Mechanics
If a diving springboard is bent and then allowed to vibrate freely, it oscillates with a frequency which is called its natural frequency. When a […]
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What is Ferromagnetism and Magnetic Domain?
A ferromagnetic material has a very high value of susceptibility, χ, and hence of relative permeability, µr. The value of µr can be several thousands. […]
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