Virtual Labs

Physical Sciences Heat and Thermodynamics Virtual Lab Experiments

Aim

Theory

Self Evaluation

Procedure

Simulation

Assignment

References

Feedback

Aim

Theory

Self Evaluation

Procedure

Simulation

Assignment

References

Feedback

Black Body Radiation: Determination of Stefan's Constant

Choose difficulty:

Beginner

Intermediate

Advanced

A body which absorbs all types of radiation incident on it is called

a: Grey body Explanation

Explanation

b: Black body Explanation

Explanation

c: Rigid body Explanation

Explanation

d: None of these Explanation

Explanation

The energy radiated by a black body is proportional to the fourth power of its temperature in..

a: Degree Celsius scale Explanation

Explanation

b: Kelvin scale Explanation

Explanation

c: Fahrenheit scale Explanation

Explanation

d: None of these Explanation

Explanation

According to Stefan's law of radiation, R=𝜀σT⁴, where 𝜀 is called

a: Permittivity Explanation

Explanation

b: Permeability Explanation

Explanation

c: Susceptibility Explanation

Explanation

d: Emissivity Explanation

Explanation

Emissivity for a black body is 𝜀 =1. For a perfect reflector it is

a: One Explanation

Explanation

b: Zero Explanation

Explanation

c: Infinity Explanation

Explanation

d: Half Explanation

Explanation

The SI unit of Stefan's Boltzmann constant is

Wm^{-2}K^{-4}

Explanation

Wm^{2}K^{-4}

Explanation

Wm^{-2}K^{4}

Explanation

Wm^{-1}K^{-4}

Explanation

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