Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

Dimensional formula of Planck constant is:

Options:

$[ML^2T^3]$

$[M^0L^0T^0]$

$[ML^3T^2]$

$[ML^2T^{-1}]$

Correct Answer:

$[ML^2T^{-1}]$

Explanation:

$ p = \frac{h}{\lambda}$

$ h = p\lambda $

Dimension of h is $[ML^2T^{-1}]$

The correct answer is Option (4) → $[ML^2T^{-1}]$