black ki garvitational field ko to sir ne class me entry tak nhi di . na singularity ke bare me hint bhi diya upar se se kya bola unhone ki 😂 black hole ka takkar agar prithivi se hoga to prithivi ke bech se nikal jayega 😂😂 prithivi khud uske andar chali jaigi sir 😂😂😂❤sory for that love your videos. tor ka hatoda😂😂