Advertisements
Advertisements
प्रश्न
A wooden knob and a metal latch on a door are both at room temperatures. Explain, why the latch is colder to touch.
टिप्पणी लिखिए
उत्तर
A wooden knob and a metal latch are both being at the same temperature but it feels colder to touch the latch because the metal is a good conductor and as soon as we touch it heat from our hand flows to the latch and we feel cold while on the other hand wood is a bad conductor of heat, the heat of our hand does not flow into it, therefore, it does not feel cold.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
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 |
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
Give a scientific reason.
In winter, why does an iron pillar feel colder than a wooden pole?
Find the odd one out and give its explanation.
Write scientific reason.
In the cold regions, snow falls in winter.
Which of the following substances will absorb more heat energy?
Ice is kept in a double-walled container. Why?
______ is a form of energy.
In which of the following, chemical energy is converted into heat energy?
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?
