Question

The physical quantities not having same dimensions are

• A. torque and work
• B. momentum and Planck?? constant
• C. stress and Young?? modulus
• D. speed and $(??0e_0)^{-1/2}$

Answer 1

Answer: (B)

momentum and Planck?? constant

Answer 2

Dimensions of momentum $= kg\, m/sec = [MLT^{-2}]$ Dimensions of Planck?? constant = joule sec $= [ML^2T^{-1}]$ $?$ Dimensions of momentum $?$ dimensions of Planck?? constant.