Class X

Heat capacity of a substance is
  1. Inversely proportional to change in temperature
  2. Directly proportional to change in temperature
  3. Inversely proportional to square of change in temperature
  4. independent of change in temperature
Electromagnetic waves travel
  1. Without medium
  2. With medium
  3. With medium and without medium
  4. In a disturbed path
Force that always opposes motion between two surfaces in contact is termed as
  1. Weight
  2. Friction
  3. Resistance
  4. Tension
Boiling point of hydrogen is
  1. −353 °C
  2. −253 °C
  3. −153 °C
  4. −53 °C
Three most common states of matter are
  1. Solid, liquid and gas
  2. Gel, liquid and gas
  3. Solid, gel and liquid
  4. Solid, gel and gas
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