. A concave lens focuses a distant object 40 cm from it on a screen placed 10 cm away from it. A glass plate (µ = 1.5) and of thickness 3 cm is inserted between lens and a screen, where should the object be placed, so that its image is again focused on the screen.
i feel difficulty in submit figure if u need that then plz tell me i will try that
"" kuch log jinhe hona chahiye saath hote nahi mere , kuch log saath hokar bhi paas nahi hote mere ; kuch saath walo ko mein paas nahi maanta , kuch saath walo se mein door chalaa jata hoon ;mere paas akela rahne ki bahut si wazah hain aur jab wo kam padne lagte hain , to mein ek aur talaash kar leta hoon"" :-(
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