Physics
Mist is caused by

Carbon-monoxide in solid form
Dry ice
Ice at low temperature
Water vapour at low temperature

ANSWER DOWNLOAD EXAMIANS APP

Physics
In total internal reflection, the light travel from

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

ANSWER DOWNLOAD EXAMIANS APP