Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyanshu kumar
https://doubtnut.com/question-answer-physics/the-average-translational-energy-and-the-rms-speed-of-molecules-in-a-sample-of-oxygen-gas-at-300-k-a-12009351 see for (a)