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प्रश्न
How can a glass stopper jammed in the neck of a bottle be removed?
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उत्तर
We should heat the neck of the bottle because due to heating the neck will expand and loosen the stopper stuck in the neck. In this way, we can easily remove the stopper from the bottle.
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संबंधित प्रश्न
Draw a neat labelled diagram of a laboratory thermometer.
When a substance having mass 3 kg receives 600 cal of heat, its temperature increases by 10∘C. What is the specific heat of the substance?
Is heat a form of energy?
Explain the following:
Land becomes warmer than water during the day.
State one use of each of the following type of thermometer:
Six's maximum and minimum thermometer.
Explain the three modes of transfer of heat.
Where am I?
The mean annual temperature is 25°C around me.
Match the following
| 1. | Heat | 0o C |
| 2. | Temperature | 100o C |
| 3. | Thermal Equilibrium | kelvin |
| 4. | Ice cube | No heat flow |
| 5. | Boiling water | joule |
