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प्रश्न
Select the correct alternative
A thermometer uses
विकल्प
water
mercury
air
none of the above
MCQ
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उत्तर
mercury
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संबंधित प्रश्न
Match the following
| Column A | Column B |
| 1. mercury | 1. insulator |
| 2. wood | 2. water from 0°C to 4°C |
| 3. Aluminum | 3.absorbs |
| 4. contracts | 4.conductor |
| 5.black surface | 5. Thermometer |
What will absorb heat?
Iron griddle (tava)
What will absorb heat?
Soil
Complete the following sentence:
CGS units of heat is _________
Which of the following substances will absorb more heat energy?
Define one calorie.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
A circular metal loop is heated at point O as shown in the following figure.
- In which direction would heat flow in the loop?
- In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.
On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. why?
