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प्रश्न
Who am I?
I make things hot or cold.
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उत्तर
I make things hot or cold- Temperature
संबंधित प्रश्न
Why does a piece of ice when touched with hands appear cold?
Is conduction possible in gases?
Define coefficient of volume expansion.
Explain the following:
Land becomes warmer than water during the day.
The following figure shows a copper washer. Explain, giving reasons, whether the following characteristics of the washer increase, decrease, or remain the same when it is heated.
(a) Internal diameter
(b) Volume
(c) Mass
(d) Density
(e) External diameter
Out of metals, liquids, and gases:
Which one is the best conductor of heat?
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
Why do people prefer wearing white clothes during summer?
