Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Home / Doubts and Solutions/ICSE/Class 9/Physics

how does the proper insulation of home save energy?

Asked by Vishal 2nd February 2018, 8:40 PM
Answered by Expert
Answer:
In home insulation is done in cold countries by having double layer of glass panes in window. This helps to trap the air in between and gives good thermal insulation because air is poor conductor of heat. So in cold season outside cold climate does not make the room more cool. Hence less energy is used for heating the room. Similarly in warmer climate less heat from outside is transferred to the house rooms. Hence less energy is used for cooling. 
In hot countries, a layer of mud and strawis laid over the roof of a house in between the concrete and brick tiles. This layer does not conduct heat of sun rays through roof into the room of house and thus helps to keep the room cool in summer.
Answered by Expert 6th February 2018, 11:51 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer 7/10

Report an issue
Tags: insulators
Previous Question
Next Question
Your answer has been posted successfully!

Free related questions

Give reason wood is an insulator
7th December 2017, 1:39 PM
is Ohm's law applicable for insulators?  
21st April 2018, 8:57 PM
which of thfollowing behave as a conductor or insulator depending on temperature a. TiO B. SiO2  c. TiO3 d. MgO
24th April 2018, 9:43 AM
400 g of wax at 10 deg. celcius is heated to 80 deg. celcius, when it starts melting.On complete melting wax is further heated so that temp. rises to 130 deg. celcius.Calculate (i) heat energy reqd. to bring the wax to its melting point (ii) heat required to melt the wax (iii) heat energy reqd. to bring the molten wax to 130 deg. celcius ( sp. heat capacity of solid wax = 1.5 J/g/c. sp. heat capacity of liquid wax = 1.8 J/g/c and sp. latent heat of wax = 80 J/g)
23rd June 2016, 12:20 PM
400 g of wax at 10 deg. celcius is heated to 80 deg. celcius, when it starts melting. On complete melting wax is further heated so that temp. rises to 130 deg. celcius.Calculate (i) heat energy reqd. to bring wax to its melting point (ii) heat energy reqd. to melt the wax (iii) heat energy required to bring the molten wax to 130 deg. celcius ? ( sp. heat capacity of solid wax = 1.5 J/g/c, sp. heat capacity of liquid wax = 1.8 J/g/c and sp. latent heat of wax = 80 J/g )
4th July 2016, 10:32 AM
RELATED STUDY RESOURCES :
ICSE Class-9 QUESTION ANSWERS

Chat with us on WhatsApp