Consider the following pairs of quantities:

1. Young's modulus; pressure

2. Torque; energy

3. Linear momentum; work

4. Solar day; light year

In which cases are the dimensions, within a pair, same?

Young's Modulus $=$ Pressure $=\left[ { M }^{ 1 }{ L }^{ -1 }{ T }^{ -2 } \right]$

[Torque] $=$ [Energy] $=\left[ { M }^{ 1 }{ L }^{ 2 }{ T }^{ -2 } \right]$

Linear momentum $=\left[ { M }^{ 1 }{ L }^{ 1 }{ T }^{ -1 } \right]$, work $=\left[ { M }^{ 1 }{ L }^{ 2 }{ T }^{ -2 } \right]$

Solar day $=[T]$ and Light year$=[L]$