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
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
Draw a labelled diagram of a thermo flask. Explain how the transfer of heat by conduction, convection and radiation is reduced to a minimum in it.
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
What will absorb heat?
Wooden board
What will absorb heat?
Plastic plate
What will absorb heat?
Soil
Give scientific reason.
Dew drops form on the grass in winter.
Find the odd one out and give its explanation.
A device in which the loss of heat due to conduction, convection and radiation is minimized is ______.
The sun gives us light and heat.
We can absorb heat by rubbing two surfaces of some substances.