AIPMT PRELIMS2005Physics-Units and Dimensions
AIPMT PRELIMS 2005 Physics Dimensional Analysis MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimension of:
A
frequency
B
velocity
C
angular momentum
D
time
Correct Answer
Option A
Detailed Explanation
Planck's constant (h) has dimensions of energy × time (ML²T⁻¹), and moment of inertia (I) has dimensions of mass × length² (ML²). The ratio h/I has dimensions of T⁻¹, which corresponds to frequency.
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