Advertisements
Advertisements
प्रश्न
A laboratory thermometer A is kept 7 cm away on the side of the flame while a similar thermometer B is kept 7 cm above the flame of a candle as shown in the following figure.
Which of the thermometers, A or B, will show a greater rise in temperature? Give reason for your answer.
Advertisements
उत्तर
Thermometer B will show a greater rise in temperature because hot air rises up or air on the top of the candle flame is getting heated by convection.
APPEARS IN
संबंधित प्रश्न
The common laboratory thermometer is a ______ thermometer
What is the use of kink in clinical thermometer?
Draw the diagram of a clinical thermometer and label its parts.
Digital thermometer is widely used for the measurement of the temperature due to ______.
Match the following :
| 1. | Mercury | a. | Maximum minimum thermometer |
| 2. | Weather report | b. | -173.15 degree C |
| 3. | 32degree F | c. | Opaque and shining |
| 4. | 100 K | d. | 0 degree C |
What is the boiling point of mercury?
Explains the properties of mercury.
In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. What is the reason for this rise in the level of mercury?
You may have noticed that a few sharp jerks are given to a clinical thermometer before using it. Why is it done so?
A solid metallic cube having a total surface area of 24 m2 is uniformly heated. If its temperature is increased by 10°C, calculate the increase in the volume of the cube.
(Given: α = 5.0 × 10-4°C-1)
