1Which is the dimensional formula of Wien's constant?
Wien's constant works out to [L K].
Fundamental constantsClass 11, Thermal Properties of Matter
Dimensional formula of Wien's constant
[L K]
The b in λ_max T = b, about 2.9 × 10⁻³ m K.
How to get the dimensional formula of Wien's constant
- Start from the definition: Wien's constant = length × temperature.
- Put in the dimension of each part: [L] × [K].
- Add the powers of each base quantity: [L K].
Three questions on Wien's constant
2What is the SI unit of Wien's constant?
The SI unit of Wien's constant is the metre kelvin (m K).
3Do Wien's constant and atomic mass unit have the same dimensions?
Wien's constant is [L K] but atomic mass unit is [M].
Wien's constant: quick answers
What is the dimensional formula of Wien's constant?
The dimensional formula of Wien's constant is [L K]. It comes from Wien's constant = length × temperature.
What is the SI unit of Wien's constant?
The SI unit of Wien's constant is the metre kelvin (m K).
Is Wien's constant dimensionless?
No. Wien's constant has the dimensions [L K].