91: A person stands at the middle point of a wooden ladder which starts slipping between a vertical wall and the floor of a room, while continuing to remain in a vertical plane. The path traced by a person standing at the middle point of the slipping ladder is:
(a) A straight line
(b) An elliptical path
(c) A circular path
(d) A parabolic path
92: In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given below such that they do not lie along the same straight line?
(a) 144
(b) 200
(c) 204
(d) 216
93: In which one of the following areas did the Indira Gandhi Center for Atomic Research make significant progress in the year 2005?
(A) A new technology for high level nuclear waste management.
(B) Reprocessing the uranium-plutonium mixed carbide fuel of the Fast Breeder test Reactor.
(C) New applications of radioisotopes in metallurgy
(D) A new technology for production of heavy water
94: Judges of a High Court are appointed by the President with the consent of the:
(a) Governor
(b) Governor, the Chief justice of India and the Chief Justice of the High Court concerned
(c) Governor and the preceding Chief Justice of the High court
(d) None of these
95: The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
(a) Gambusia fish
(b) Snail
(c) Crab
(d) Dogfish