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50. Let A and B the two gases and given :

(TA/MA)=4(TB/MB)  where  is the temperature and M is molecular mass. If CA and CB  are the r.m.s. speed, then the ratio CA /CB  will be equal to

(a)  2                                         (b)  4

(c)   1                                         (d)  0.5

Answer-a

(8)

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