banner5 Link to go to Sensei site
    HomeSubscribeMy AccountFAQtJapanese JLPT N5UGC NET SET paper IMathematicsPhysics -  Heat, Light, atomic, General Chemistry - Physical,Analytical, Organic, Inorganic ChemistryBiology - Botany, Zoology, Microbiology,ImmunologyHuman Body system : Circulatory, Peripheral,Nervous,Mascular, sexual t Login | Register
   Science >> Physics >> Phy-Light >> Phenomenon
Login or Register   Lighting fire with magnifying glass  

   New User Register

   Login Member:

   Site Search
   Advance Search
Other animations
Lenses and their Properties
Translate This Page

Science and tech animation catalog in flash Animation product List
    education animation online in flash Row view of animated science  Row format
    physics, chemistry, biology animation Grid format of education animation  Grid format
    educational animation link  List format of educational animation  List format


Overview         (For age - group : Below 16 )

The application of convex lens to focusing light rays at a single point is explained in this school science animation, also find out how an ice can also be used for burning. Useful for understanding application of lenses.

Product - Animation
  Size/Time Subscribe Preview / Trailer
Size (KB) 269 US$    0.00 Rs. 0.00
 Check price in your currency
Subscription Days = 30 Watch a preview (opens in separate window)
Time (hr:min:sec) 0:5:0
Add To Cartshopping cart
Watch a free preview of this science  and technology animation

Pay Thru PayPal

Besides the animation of the above concepts in detail the animation file also consists of the following in the explanatory notes section

  • What is meant by focal length?
  • Can a concave lens light a fire?
  • Why does paper burn?
  • Can a paper be burnt by focussing light from a bulb?
  • How can sun situated so far away burn a paper?

  • Snapshots         
    burning paper with convex lens
    Details of the animation/ movie /software

    Convex lens can be used to light up fire by concentrating the sun's rays at a point. Since the lens is located very far from the sun, the rays reaching the lens are essentially parallel.

    A beam of parallel light rays after passing through a convex lens converge at its focus. The object which is to be burnt should be placed at the focus of the convex lens. The lens focuses not only the sunrays but also their radiant energy at a single point which lights up fire.

    Even ice carved in a shape similar to convex lens can be used to light fire. The ice to be used should highly transparent and it'll behave as if it's a convex lens.

    If you are still unclear about the concepts, please refer the animation below.

    Besides the animation of the above concepts in detail the animation file also consists of the following in the explanatory notes section

    • what is meant by focal length ?
    • Can a concave lens light a fire ?
    • Why does paper burn ?
    • Can a paper be burnt by focussing light from a bulb ?
    • How can sun situated so far away burn a paper ?

    Related Products
    Buyers Feedback:

    Q & A
    Q1: who discoverd lens fire theory revathi 22/3/2016
    Q2: I did it with the students and it worked.Thank you farida 28/2/2011
    Q3: The heat from sun light shadow rays that pass through a lens,when it burns a carbon paper and store watts of energy if it is directed to analogue video convert ADC,will galatic picture be show on VDU of computer screen serial video input? Nzewi uchenna osita 13/4/2010
    Q4: can you e mail me this page? Robert Sanders 10/2/2006
    Ans: wehave emailed this file to you, an easier way would also be to use "save as" facility in your browser

    Give your comments
      Give your Comments (for questions go to Forum)
    Name *
    Email *
    Question *
    Enter Code
    Code Image - Please contact webmaster if you have problems seeing this image code  Refresh

    Home | Subscribe| My Account |FAQ |About Us | Contact Us | Login | Register
    Copyright ©2016 All rights reserved. Copyright | License | Privacy policy|

    tag heuer wt1150 audemars piguet royal oak instruction manual swiss replica watches best place to buy watches online tag heuer lowest price watch in india rolex replica uk rolex watch replicas rolex 2764 replica watches uk breitling blacksteel omega constellation automatic chronometer officially certified swiss replica watches breitling history models first copy watches in dubai fake watches