tomorrow is my practical ...i was worried about it..bt after watching it ..i m confident..thnk uh so much 😊😊
@hayabukharii14356 жыл бұрын
nice explaination with such a smoth voice
@pritamsingh-vn8un4 жыл бұрын
Aapki awaz bhut Achi h mam ❤️
@sumiyahussain1239 Жыл бұрын
If the rough focal length is 15 cm. Then radius of curvature is 30. Since u have taken object at C, then position of needle should be 30 not 49. Kindly explain