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Solid State (Part I)
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Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IIIrd Year UG, IITB | 115/120 in Maths in JEE Main (2016) | Qualified NSEA (Astronomy Olympiad) | YouTuber with over 1,25,000 subscribers.

Unacademy user
Sir, will you be posting stuff on nano-materials,plastics etc?
Ashish Kumar
2 years ago
not now. coz 1st I am targeting syllabus of GATE . after that I will try to cover the rest part. :)
Sir in first question... The answer is right bt bt there's some calculations radius of nh4 would be asked and that be 335.1-181=154.1
Aryan Das
5 months ago
yes you are right
Aryan Das
5 months ago
But the answer must 174.1 in first question
Sasidhar buddha
2 months ago
no answer is correct..