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The physical quantities not having same dimensions are
- torque and work
- momentum and planck’s constant
- stress and young’s modulus
- speed and (μ₀ε₀)⁻¹/²
Correct answer: momentum and planck’s constant
Solution
Momentum is a measure of motion and has dimensions of mass times velocity, while Planck's constant relates energy to frequency and has dimensions of action, which is mass times distance squared per time. Therefore, these two quantities do not share the same dimensional formula.
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