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.
टीपा लिहा
Advertisements
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
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
While deciding the unit for heat, which temperature interval is chosen? Why?
Give scientific reason.
Dew drops form on the grass in winter.
With the help of a diagram, show that water is a bad conductor of heat.
The unit of heat and temperature are the same.
The process of converting a liquid into a solid is called ________.
We can absorb heat by rubbing two surfaces of some substances.
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?
The SI unit of heat energy is ______.
Warm air is ______.
