SATHEE: PYQ NEET- Units Of Measurement L-1

Question: 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

Answer: gravitational constant

Solution:

$\begin{aligned} Angular momentum = [{ML}^{2} T^{- 1}] & Coeff of thermal conductivity = [{MLT}^{- 3} K^{- 1}] & Torque = [{ML}^{2} T^{- 2}] & Gravitational constant = [M^{- 1} L^{3} T^{- 2}] \end{aligned}$

So, gravitational constant has power of $(- 1)$ of $M$ .

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Question: The mechanical quantity, which has dimensions of reciprocal of mass (M−1) is :

Answer: gravitational constant

Solution:

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Question: The mechanical quantity, which has dimensions of reciprocal of mass $(M^{- 1})$ is :