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wat si the type of lens that magnifies ur imge and also produces a virtual image? answer this question then wat is the ray diagram for getting image at infinity with that type of lens? wat is lens formula relating f,u,v i can get my v from that? wat is magnification? in terms of u and v u are near the answer once u have ansered all these questions
The lens must be a convex lens. The object is at focus.
\[1/v - 1/u = 1/f\]
Here, v = 0
Also, m = v/u
But, I am not getting the answer.
put down the ray diagram for me when image is at infinity for convex lens
Just one minute. Here is the diagram.
yeah so? u=?
u = 5
then? tell me how do i proceed?
m = f/(f+u) = 5/(5+5) = 0.5?????
m=v/u u never used taht?
But how to do? Please say in detail the complete steps.
u know that formula?
U say akka. PLease.
i forgot for lenses tahts y ia m asking u
Ohhhhhhh!!! Can u please post the details tomorrow? I have to go now. Bye.
ok bye! see pg.182 of 10th ncert text book
Okay, will look and say tomorrow.
Its given that, m = v/u = h1 / h2
yeah so u know u, find V using lens formula then apply u/v to find magnification(the extent to which the image is magnified w.e.to object) the key here is taht u=focal length that u will come to know ONLY WHEN U DRAW THE RAY DIAGRAM!
But, v = 0 na?
1/f=1v-1/u 1/v=1/f+1/u by sign convention f=-5 u=-5
v = 0, rite?
U learnt ssign convention?>
yeah. U try and see. This problem uses some different formula. Then only we can get it.
i will get back to you later after searching abt this problem
U r correct didi!!!!!! Cheers!!!!!!! thanks for the solution.
:) we learn nothing...........there is so much to learn further
Oooooooooo. But, it is a continous process. Being happy is also a continuous process. So, be happy!!!!!!:P
!!!!!!!!!!!!!!!!!! i dont know wat to type :)
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Can't stop laughing!!!!!!!!!!!!!!!!!!!!