i am here [3]
drawing karne ke liye thoda waqt lag gaya :P
sorrrrrrrryyyyyyyyyyyyy [2]
A lens of focal length 20.0cm and aperture radius 2.0cm is placed at a distance 30.0cm from a point source of light.On the other side a screen is placed at a distance 50.0cm from the lens.The radius of spot of light formed on screen is __________
i am here [3]
drawing karne ke liye thoda waqt lag gaya :P
sorrrrrrrryyyyyyyyyyyyy [2]
heeeeeeeeeeeeyyyyyyyyyyyyyyyyyyy
WHY ARE U ALL TALKING IN 'DUNNO WAT' LANGUAGE ????
TRANSLATE.........
PLZ DO IT........
Aragorn will translate for me.i know that he is a better translator than me.