All India Engineering / Architecture Entrance Examination (AIEEE)
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AIEEE 2008 Physics
Q. 19. A jar is filled with two non-mixing liquids 1 and 2 having densities 
, respectively. A solid ball, made of a material of density 
, is dropped in the jar. It comes to equilibrium in the position shown in the figure. Which of the following is true for 
?
Sol:
Q. 20. Suppose an electron is attracted towards the origin by a force 
where 'k' is a constant and 'r is the distance of the electron from the origin. By applying Bohr model to this system, the radius of the nth orbital of the electron is found to be 'rn' and the kinetic energy of the electron to be 'Tn'. Then which of the following is true?
Sol:
