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Questions and Answers
What principle explains the buoyant force acting on an object submerged in a fluid?
What principle explains the buoyant force acting on an object submerged in a fluid?
- Archimedes' Principle (correct)
- Pascal's Principle
- Bernoulli's Principle
- Newton's Second Law
Which equation represents the relationship between pressure, volume, and temperature in an ideal gas?
Which equation represents the relationship between pressure, volume, and temperature in an ideal gas?
- P = V/nT
- PV = kT
- PV = nRT (correct)
- PV = RT
Which of the following describes the phenomenon of thermal expansion in solids?
Which of the following describes the phenomenon of thermal expansion in solids?
- Decrease in density with temperature increase
- Increase in dimension with the rise in temperature (correct)
- Dimensional contraction at high temperatures
- Total decay of molecular structure upon heating
What condition is necessary for total internal reflection to occur?
What condition is necessary for total internal reflection to occur?
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In the context of wave interference, what is typically observed when two waves interfere constructively?
In the context of wave interference, what is typically observed when two waves interfere constructively?
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Study Notes
Buoyant Force
- The principle that explains buoyant force is Archimedes' Principle, which states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced.
Ideal Gas Law
- The equation representing the relationship between pressure (P), volume (V), and temperature (T) in an ideal gas is the Ideal Gas Law: PV = nRT, where n is the number of moles and R is the universal gas constant.
Thermal Expansion in Solids
- Thermal expansion in solids is the phenomenon where a solid increases in size when its temperature rises, due to the increased kinetic energy of its atoms causing them to move apart.
Total Internal Reflection
- Total internal reflection occurs when light traveling through a denser medium hits a boundary with a less dense medium at an angle greater than the critical angle, resulting in the light being completely reflected.
Wave Interference
- When two waves interfere constructively, they combine to produce a wave of greater amplitude, leading to increased intensity of the resulting wave.
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