Looking for classes? Ksquare Career Institute, Bengaluru →
The mechanical quantity, which has dimensions of reciprocal of mass ($M^{-1}$) is:
A
angular momentum
B
coefficient of thermal conductivity
C
torque
D
gravitational constant
Detailed Solution
Angular momentum $=[ML^2T^{-1}]$; coefficient of thermal conductivity $=[MLT^{-3}K^{-1}]$; torque $=[ML^2T^{-2}]$; gravitational constant $=[M^{-1}L^3T^{-2}]$. Only the gravitational constant has $M$ raised to the power $-1$.