अवतल दर्पण के लिए फोकस दूरी का सूत्र

[@Nxt-t7k]

Ji 🧬

[@anshikakureel8454]

Mujhe is topic ko samjhne me bahut problem hoti thi but ab mujhe achhe se samjh aa gya thank you so much sir

[@vinaynishad6907]

Acche se dikh nahi Raha hai sir 😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮😮

[@SukhdevShah-x4m]

?Kuch samj me nahi aya sar ji