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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Laws of Radiation

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Beginner

Intermediate

Advanced

The absorptivity is given by

a:

\alpha = \frac{3}{Q_a}

Explanation

Explanation

b:

\alpha = \frac{Q_a}{Q}

Explanation

Explanation

c:

\alpha = \frac{3Q_a}{Q}

Explanation

Explanation

d:

\alpha = \frac{Q}{Q_a}

Explanation

Explanation

Reflectivity is given by

a:

\gamma = \frac{Q_r}{Q}

Explanation

Explanation

b:

\gamma = \frac{3}{Q_r}

Explanation

Explanation

c:

\gamma = \frac{Q}{Q_r}

Explanation

Explanation

d:

\gamma = \frac{3Q_r}{Q}

Explanation

Explanation

Transmissivity is given by

a:

\tau = \frac{3Q_t}{Q}

Explanation

Explanation

b:

\tau = \frac{Q_t}{Q}

Explanation

Explanation

c:

\tau = \frac{3}{Q_t}

Explanation

Explanation

d:

\tau = \frac{Q}{Q_t}

Explanation

Explanation

Stefan Boltzmann's constant is given by

a:

\sigma = 5.69 \times 10^{-7} \ \ W/m^3K^5

Explanation

Explanation

b:

\sigma = 5.67 \times 10^{-7} \ \ W/m^3K^5

Explanation

Explanation

c:

\sigma = 5.69 \times 10^{-8} \ \ W/m^2K^4

Explanation

Explanation

d:

\sigma = 5.67 \times 10^{-8} \ \ W/m^2K^4

Explanation

Explanation

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