CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The unit of Stefan's constant is


A

Wm-2K-1

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

WmK-4

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

Wm-2K-4

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

Nm-2K-4

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

Wm-2K-4


The explanation for the correct answer:-

Option (C)

  1. According to Stefan's law, the energy radiated per second or power radiated is given by
    P=σAT4, P is the power radiated by the body
  2. σ=PAT4, σ is Stefan's constant. A is the surface area of the body, T is its Temperature
  3. σ=Wattm2K4=Wm-2K-4, W stands for Watt., m for Metre, K for Kelvin.
  4. Therefore, the unit of Stefan’s constant is Wm-2K-4.

Hence option C is the correct option.


flag
Suggest Corrections
thumbs-up
7
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Laws of Radiation
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon