1. If the molecular weight of two gases are M1 and M1, then at a temperature the ratio of root mean square velocity v1 and v2 will be
(a) √M1/M2 (b) √M2/M1
(c) √(M1+M2)/(M1-M2 ) (d) √(M1-M2)/(M1+M2 )
Answer-b
(12)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)