Q.51)-In which form is the supplied heat energy stored during change in temperature of substances?
- Heat energy
- Kinetic energy
- Potential energy
- Both kinetic and potential energy
Q.52)-Gas thermometers are more sensitive than liquid thermometer because the gases
- Have larger coefficient of expansion
- Are lighter
- Have low specific heat
- Have high specific heat
Q.53)-What changes will happen to a bowl of ice and water kept at exactly zero degree celsius
- All ice will melt
- All water will become ice
- No change will happen
- Only some ice will melt
Q.54)-The temperature of boiling water in a steam engine may be high because
- There aer dissolved substances in water
- There is low pressure inside the boiler
- There is high pressure inside the boiler
- The fire is at very high temperature
Q.55)-Which of the following instruments is used to measure humidity?
- Kata thermometer
- Anemometer
- Sling psychrometer
- Clinical thermometer
Q.56)-What is triple point of water
- 273.16K
- 273.15K
- 00C
- 1000C
Q.57)-The freezing point of water
- 30C
- 50C
- 00C
- 40C
Q.58)-Lake freeze in cold countries in winter, leaving the water underneath at
- 00C
- 00F
- 40C
- 40F
Q.59)-Why boiling point of water decrease with increase in altitude
- Low temperature
- Low atmospheric pressure
- High temperature
- High atmospheric pressure
Q.60)-Why clouds float in atmosphere?
- Low pressure
- Low density
- Low viscosity
- Low temperature