Class X

When you hang your t-shirt or jeans on a rope to dry it out, it dries fast even if there is no sun, this is due to
  1. Boiling of perfume
  2. Evaporation of liquid
  3. Melting of liquid
  4. Condensing of deodorant
Light can travel in
  1. Air only
  2. Vacuum only
  3. Both air and vacuum
  4. None of mediums
Melting point of wax is equal to 330 K, which is equal to
  1. 603 °C
  2. 57 °C
  3. −603 °C
  4. −57 °C
Exertion of pull or push on an object is termed as
  1. Energy
  2. Work done
  3. Force
  4. Acceleration
 Refrigerators are a bad example of
  1. Conduction
  2. Convection
  3. Radiation
  4. Conduction and radiation both
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