55. If the ratio of vapour density for hydrogen and oxygen is 1/16 , then under constant pressure the ratio of their rms velocities will be
(a) 4/1 (b) 1/4
(c) 1/16 (d) 16/1
Answer-a
(10)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)