कैसीग्रेन का परावर्तक दूरदर्शक ( cassegrain's reflection telescope )ll by shyam sir

[@GudduBodhi]

🎉🎉 nice 🎉🎉🎉

[@biharienglishclassesamanku4660]

Bahut accha sir

[@SarojKumari-p9s]

So nice sir ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@Rajkaran498]

Very nice class sir

[@shyamdevkumar8514]

Thanks

[@SujitKumar-z4m]

Bahut accha hai sir ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@shyamdevkumar8514]

Thanks ❤️❤️

[@BhumiKumari-nc8cu]

Nice🎉

[@shyamdevkumar8514]

🥳

[@SarojKumari-p9s]

🤭🤭🤭🤭