The value of Stefan's Boltzmann Constant is:

Correct answer: D. 5.67 x 10^-8 Wm-2K-4

  • A. 4.28 x 10^-7 Wm-2K-4
  • B. 4.28 x 10^-4 Wm-2K-4
  • C. 3.62 x 10^-4 Wm-2K-4
  • D. 5.67 x 10^-8 Wm-2K-4

Explanation

Explanation: The value of Stefan's Boltzmann constant is 5.67 × 10-8Wm-2K-4. It relates the total amount of energy radiated per unit surface area of a black body per unit time to its temperature.

This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.

Written and checked by , contributorLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

About Quantum Theory and Radiation

Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.

Practise Dawn of Modern Physics

739 free Dawn of Modern Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Physics questions like this

Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

More Quantum Theory and Radiation questions