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Questions

Physics

Multiple Choice Question with Only One Choice Correct
The mass of an oxygen molecule is about 16 times that of a hydrogen molecule. At room temperature the rms speed of oxygen molecules is v. The rms speed of the hydrogen molecule at the same temperature will be

(a)	v/16	(b)	v/4
(c)	4 v	(d)	16 v

Chemistry

Complete the following Reaction

Mathematics

Multiple Choice Question
The position vector of a point P is r = xi + yj + zk, where x, y, z

N and u = i + j + k. If r . u = 10 then the possible positions of P are

(a)

72

(b)

36

(c)

60

(d)

108

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