question based on convex lens..........

Asked by krithika.rrrr | 21st Apr, 2009, 02:45: AM

Expert Answer:

Here Focal length: f=1/4 m = 100/4 cm
Image distance : v= 40cm

Using Lens formula : 1/f = 1/v - 1/u

4/100 = 1/40 - 1/u      =>   Solving the equation we get u = -200/3 cm

Answered by  | 23rd Apr, 2009, 01:38: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.