Daily Question Banks for Engineering Entrance and Board Exams

Questions
Physics

In an inelastic collision of two bodies, which of the following do not change after the collision?

(a) Total Kinetic Energy
(b) Total Linear momentum
(c) Total Energy
(d) Total angular momentum


Chemistry

According to Graham’s law at a given temperature the ratio of the rates of diffusion
of gases A and B is given by


Mathematics

Let . The number of equations of the form px2 + qx + 1 = 0 having real roots is
(a) 15              (b) 9              (c) 7              (d) 8

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