Physics
Which of the following are methods of heat transfer?

Thermal Expansion
Convection
Revolution
Evaporation

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Physics
In total internal reflection, the light travel from

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

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