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India under Delhi sultanate 2 (Tamil)
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India under Delhi sultanate 2 briefly explained for RPF RRB TNPSC competitive exam

Saravana Kumar is teaching live on Unacademy Plus

Saravana Kumar
# Founder of "Tamizha Academy" # l cleared TNTET # I have 7 years experience in competitive exams (TNPSC, TNTET, POLICE, ARMY, RRB)

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the insolation received at the earth surface is in the form of short wave VISIBLE RAYS and it leaves earth as long wave infrared radiations... but u sare saying that insolation is in the form of infra red? how so