RE-NEET2026Physics-Thermodynamics
RE-NEET 2026 Physics Blackbody Radiation MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Consider that σₛ, k_B, b represent Stefan-Boltzmann constant, Boltzmann constant and Wien’s displacement law constant, respectively. The dimension of σₛk_B²b is :
A
[L⁻⁵T³K²]
B
[L⁻¹T⁻¹K⁻³]
C
[L⁻¹T⁻¹K⁻⁴]
D
[L⁻¹T⁻¹K⁻²]
Correct Answer
Option B
Detailed Explanation
The dimensions of Stefan-Boltzmann constant (σₛ) are [M¹T⁻³K⁻⁴], Boltzmann constant (k_B) are [M¹L²T⁻²K⁻¹], and Wien’s displacement constant (b) are [LT]. Combining these, the dimension of σₛk_B²b is [L⁻¹T⁻¹K⁻³].
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