24Q10
AT POLE OF MIRROR
as eureka stated lets put up some problemss that might be of good help for jee 2009 revision aspect. i just did not want to mix it up with his thread and make it go unnoticed like my chemistry hub
1}show that the focal length of a thin lens is not changed when the lens is rotated so that the left and right surfaces are interchanged.
2}As an object is moved from the surface of a thin converging lens to a focal point, over what range does the image distance vary?
3}two thin similar convex glass poeces are joined together front to front, eith its rear portion silvered such that a sharp image is formed 0.2 m for a object at infinity. when the air between the glass pieces is replaced by water{μ=4/3}, find the position of the image.
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47 Answers
62good work eureka..
(on looking at the solutions, they all seem correct :)
24what about Q8 and Q4 ????????are they incorrect.?????plz guide me sir.......[2]
39
4}A point object is moving with speed `v` before an arrangement of two mirrors as shown in the figure.Find the velocity of the image in mirror M1 wwith respect to image in mirror M2.
24ok.........i just thought that if i had commited a blunder a could correct that...............anyways thanx.....[1][1]
24kya koi aur try kar raha hai ya main hi akela pagal hoon??????????[7][7][7]
mathie answer to bata de bhai........[2][2][2][2]
1arey yeh toh easy hain.... sahi mein....
image will be at f/2 from the right hand lens...
11in Q8
in eureka's solution
in the second case u2=-f
that is the object is at the focus so final image would be first one
i think
1but i am getting the magnitude of lateral magnification as 1/4.
plz chcek the ans and inform..