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Multiple Choice Question with Two or More Choices Correct
Which one of the following statements are not true for a gas undergoing an isothermal change
(a) The temperature of the gas remains constant
(b) The pressure of the gas remains constant
(c) The volume of the gas remains constant
(d) The gas is completely insulated from surroundings

Chemistry

Multiple Choice Question
The unit of cell present in the crystal lattice of diamond is

(a)

cube

(b)

tetragonal

(c)

hexagonal

(d)

trigonal

Mathematics

Three normal are drawn from the point (c, 0) to the curve y² = x. Show that c must be greater than 1/2, one normal is always x=axis. Find c for which the other two normals are perpendicular to each other.

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