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To verify the Stefan’s law by Electrical method – Physics Practical
Stefan’s law states that the energy radiated per second by unit area of a black body at thermodynamic temperature T is directly proportional to T 4 . The constant of proportionality is the Stefan constant, equal to 5.670400 × 10 –8 Wm –2 K –4 . This practical will verify this law using electrical method.
Practical of verification of Stefan’s law
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Verification of Stefan’s law
1.Make connections to complete the circuit. 2.Slide the power to ON mode. 3.Increase the voltage from 0 V with an increase of 0.5 V till 9.5V. 4.Measure the corresponding current in ammeter. 5.Fetch the values of current and voltage in Table 1 after every step. 6.Take 10 observations. 7.Decrease the voltage from 10.0 V with a decrease of 0.5 V till 1.0 V. 8.Fetch these values of current and voltage in Table 1. 9.Take observations from Table 1 and place them in Table 2 by the Fetch button. 10.Values of LogP and LogT will be calculated. 11.Plot graph between LogP and Log T by plot data button. 12.Calculate the slope of the graph
Verification of Stefan’s law
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Physics lab: Viva-Voce Question and Answers. Define Power. A: Electric power is defined as the product of potential difference and current strength. Explain the verification of Stefan’s law. A: Refer Lab Manual. Can you mention some instruments to measure radiations? A: Radio micrometer, Bolometer and Pyrometer.
Stefan's Law ...more. Most important questions related to stefan's constant experiment in thermal physics.
Lets learn the essentials of Stefan's law of black body radiation with this short video. Important questions along with their answers are presented here which are likely to be asked during...
Some highlights include Stefan's law relating radiation emitted from a black body to temperature, factors that determine bandwidth and quality of series and parallel circuits, how dielectric materials are polarized in electric fields, and Fermi energy defining the highest occupied state for electrons in solids.
Stefan’s law states that the energy radiated per second by unit area of a black body at thermodynamic temperature T is directly proportional to T4. The constant of proportionality is the Stefan constant, equal to 5.670400 × 10 –8 Wm –2 K –4. This practical will verify this law using electrical method.
for Virtual Lab Stefan's Lawhttps://youtu.be/WnFEFiU8uLcFor Black body and other theory related to thishttps://youtu.be/lwrx_AteiA8andhttps://youtu.be/TXqwAx...
To verify Stefan’s law of radiation. APPARATUS USED: Complete set-up make Raman consists of one 0- 6 V regulated power supply, Filament bulb 6V, Digital Voltmeter and Ammeter. 1. PRINCIPLE: According to Stefan’s law power radiated from a black body is proportional to the fourth power of its absolute temperature. i.e. P μT4. or log P μ 4 log T (1)
Verification of Stefan’s law. Where E is the net amount of radiation emitted per second per unit area by a body at temperature T and surrounded by another body at temperature T 0. σ is called Stefan’s constant. A similar relation can also hold for bodies that are not black.
Verification of Stefan’s law. 1.Make connections to complete the circuit. 2.Slide the power to ON mode. 3.Increase the voltage from 0 V with an increase of 0.5 V till 9.5V. 4.Measure the corresponding current in ammeter.
Verification of Stefan’s law. 1. The plot of Log P Vs log T for anybody is at a temperature larger than the temperature of the surroundings will be: a: Straight line b: parabolic c: hyperbolic d: elliptical. 2. The slope of the standard plot between Log P Vs log T for anybody is at a temperature larger than the temperature of the surroundings is.