Dimensional ConstantsHardQuestion 5034
Question
The ratio h/e (Planck's constant / electronic charge) has dimensions of:
- A[MLT⁻¹A⁻¹]
- B[ML²T⁻²A⁻¹]Correct
- C[ML²T⁻¹A⁻¹]
- D[MLT⁻²A⁻¹]
Correct answer
[ML²T⁻²A⁻¹]
Explanation
[h] = [ML²T⁻¹], [e] = [AT]. So [h/e] = [ML²T⁻¹]/[AT] = [ML²T⁻²A⁻¹].