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How many hours do we need to sleep?
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How many hours do we need to sleep

Rangu Satish
Verified Educator@#Unacademy, GS Faculty for #UPSC

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U
Unacademy user
WP
mam wasim here i am the student of applied physics which you are teaching. really your teaching intrest is very good and i have benefited lot from your lecture but there is one query on my mind that you should speak little loud so that we can hear your lecture in groups okkk i hope that in next lecture you will focus on that thankyoy
Prakriti Mishra
a year ago
Thank you very much Wasim, I’ll take care of that next time 😊