Physics
Which one of the following physical quantities has the same dimensions as that of Planck's constant?

Potential energy
Force
Angular momentum
Linear momentum

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Physics
In total internal reflection, the light travel from

Denser to rarer medium and it occurs with loss of intensity
Rarer to denser medium and it occurs with loss of intensity
Rarer to denser medium and it occurs with no loss of intensity
Denser to rarer medium and it occurs with no loss of intensity

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