Physics
Out of the following pairs, which one does not have identical dimension?

Angular momentum and Planck's constant
Work and Torque
Moment of inertia and moment of a force
Impulse and Momentum

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Physics
A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

The human body maintains a constant temperature
The stone conveys the heat away from the feet more rapidly than the carpet
The floor and carpet are at different temperatures
The carpet is a better conductor of heat than the stone

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