All India Engineering / Architecture Entrance Examination (AIEEE)

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AIEEE 2008 Physics

Q. 27. Relative permittivity and permeability of a material are respectively. Which of the following values of these quantifies are allowed for a diamagnetic material?

Sol:

Q. 28. A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11 km s^-1, the escape velocity from the surface of the planet would be

1. 110 km s^-1
2. 0.11 km s^-1
3. 1.1 km s^-1
4. 11 km s^-1

Sol :

Q. 29. A thin rod of length 'L' is lying along the x-axis with its ends at x = 0 and x = L. Its linear density (mass/length) varies with x where 'n' can be zero or any positive number. If the position x_CMof the centre of mass of the rod is plotted against 'n', which of the following graphs best approximates the dependence of xCM on n?

Sol:

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