Class X

Gravitational pull force is not dominant on
  1. Weight
  2. Mass
  3. Speed
  4. Friction
 If an unmarked mercury-in-glass thermometer has l100 23 cm and l0 is 8 cm, if lθ is 5 cm temperature of thermometer would be
  1. −10 °C
  2. −20 °C
  3. −30 °C
  4. −40 °C
Process of transfer of thermal energy without any flow of material medium is called
  1. Conduction
  2. Convection
  3. Radiation
  4. None of above
 An electric kettle of 1200 W works for 1 hour, energy consumed by kettle is
  1. 3 J
  2. 2400 J
  3. 1200 J
  4. 4320000 J
Solid melts because the
  1. Intermolecular bonds get weak
  2. Thermal energy increases rate of kinetic energy
  3. Thermal energy helps in breaking intermolecular bonds between particles
  4. Particles start vibrating more vigorously due to thermal energy
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP