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Relation between Displacement Wave and Pressure Wave Relation between Displacement Wave and Pressure Wave :- A sound wave can be expressed either by displacement of its particles from mean position or by excess pressure produced by compression and rarefaction. Consider a harmonic displacement wave moving through air contained in a long tube of cross…
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Speed of Longitudinal Waves Speed of Longitudinal Waves :- Consider a fluid (gas/liquid) element of thickness Δx confined in a tube of cross-sectional area S as shown in figure below : Let Po be the equilibrium pressure and ρ be the equilibrium density of the fluid. The mass of the element under consideration is…
Speed of Transverse Wave | Speed of Transverse Wave on a Straight Wire Speed of Transverse Wave | Speed of Transverse Wave on a Straight Wire :- In this article, we focus on determining the speed of a transverse pulse traveling on a taut string. Consider a pulse moving on a taut string…
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A wooden block with a coin placed on its top Question :- A wooden block with a coin placed on its top, floats in water as shown in the figure. The distance l and h are shown. After some time, the coin falls into the water. Then, (A) l decreases and h increases (B) l increases and h decreases (C) Both l and h increase…
If a spring of stiffness k is cut into two parts A and B of length lA : lB = 2 : 3, then the stiffness of spring A is given by Question :- If a spring of stiffness k is cut into two parts A and B of length lA : lB = 2 : 3,…
A hunter aims his gun and fires a bullet directly at a monkey on a tree. At the instant the bullet leaves the barrel of the gun, the monkey drops. The bullet Question :- A hunter aims his gun and fires a bullet directly at a monkey on a tree. At the instant the…
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Growth of Ice on Lake Growth of Ice on Lake :- The growth of ice on a lake is a fascinating natural process that occurs during cold weather conditions. When the air temperature drops below freezing (0°C or 32°F), the heat from the lake’s surface is transferred to the colder air, causing the water at…
Thermal Resistance | Thermal Resistance Formula Thermal resistance is a concept that quantifies how effectively a material or an object resists the flow of heat. It represents the impediment that a substance poses to the transfer of heat energy. Just as electrical resistance hinders the flow of electric current, thermal resistance hampers the…
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Fourier Law of Heat Conduction Fourier Law of Heat Conduction :- The Fourier’s Law of Heat Conduction is a fundamental principle in thermodynamics that describes the rate of heat transfer through a material by conduction. It was formulated by the French mathematician and physicist Jean-Baptiste Joseph Fourier. This law provides a mathematical relationship between…
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Temperature Gradient The temperature gradient is a fundamental concept in thermodynamics and heat transfer that quantifies the rate of change of temperature with respect to distance. It describes how the temperature of a substance changes as we move from one point to another within it. In other words, it represents how quickly or slowly…