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प्रश्न
Select the correct alternative
A thermometer uses
पर्याय
water
mercury
air
none of the above
MCQ
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उत्तर
mercury
shaalaa.com
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संबंधित प्रश्न
Name the three modes of transfer of heat.
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
What will absorb heat?
Iron griddle (tava)
Give a scientific reason.
In winter, why does an iron pillar feel colder than a wooden pole?
A wooden knob and a metal latch on a door are both at room temperatures. Explain, why the latch is colder to touch.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
Match the following
| 1. | Heat | a. | Good absorber |
| 2. | Temperature | b. | Form of energy |
| 3. | Black surface | c. | Insulators |
| 4. | Rubber, cork | d. | The measure of hotness or coldness |
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
Arrange the following in order of decreasing the expansion of heating: Steel, milk, air.
Heat gained by a body depends upon which factors?
