Numericals Chapter 7 | Deformation of Solids | Class 11 Physics | National Book Foundation 2024

[@AbdullahZafar-iv8jx]

17:24 in numerical 3 you used the young's modulus of brass as 10x10¹⁰.... actually it is 1.0x10¹⁰

[@aliliaqatphysics]

Actually answer in text books is given w.r.t 10×10^10. Surely, it is 1.0.

[@Mini_Gamer532]

sir some values on the screen are not clearly visible . kindly sir from next onward plz try kijiye ga k thora close kr k videos banain..

[@aliliaqatphysics]

Sorry for inconvenience. You opinion is much worthy for me. I will take care of it next time. Thank you so much❤️

[@Mini_Gamer532]

@@aliliaqatphysics thank you sir

[@Laibaroshan2]

Last numerical answer is 12.15 J

[@aliliaqatphysics]

Acording to textbook data, 12.15 J can not possible.

[@sanasaleem244]

why you used 8.0×10^10 ?

[@aliliaqatphysics]

I have explained it in the video. When we hang picture frame with nail, then there produce shear in it. There is no change in length. As shear modulus of steel is 8.0×10^10 so I used it. It there is change in length, then we have to use 20×10^10 which is young's modulus of steel.