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FCT2013-14_CTY1315(Adv-Normal)_A-LOT_PHASE_II_PCM_I_CPT2-1_SET-A (1)
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2.A smooth spherical ball of radius 1 cm and density 4 x 103 kg/m3 is dropped gently in a large container containing viscous liquid of density 2 x 103 kg/m3, and
= 0.1 N-s/m2. The distance moved (in metre) by the ball in t = 18 sec after it attains terminal velocity is ……….
3.A particle A of mass 2 g moves along the line with a speed of 10 cm/s and another particle B of mass 4 g moves along the line
, with a speed of v cm/s. Both of them start simultaneously from the origin with A and B moving towards the first and fourth is quadrants respectively, such that the centre of mass is always on X-axis. The value of v is ………..
4.A uniform disc of mass m is rolling on a rough horizontal surface with the velocity of centre of mass as v0 =
m/s. The speed of the particle P, which is at the circumference of disc and is in the same level as the center of mass of the disc, will be …………..
5.A uniform wire is bent in the form of a circle of radius r = 0.4 m. It is initially at rest and its diameter OA is horizontal. It is then released and allowed to swing about point O in the vertical plane. During its motion when the diameter occupies the position OB, then its angular speed is ………… (rad/sec)
P70
6.Two soap bubbles of radii 1 x 10–3 m and 2 x 10–3 m coalesce. If the surface tension of liquid is 7 x 10–2 N/m, then the radius of curvature of the common surface (in mm) will be ………….
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7.A large open tank has two holes in the wall. One is a square hole of side mm at a depth y from the top and the other is a circular hole of radius R at a depth 4y from the top. When the tank is completely filled with water, the quantity of water flowing out per second from each hole is the same initially. Then, R is equal to (in mm) …………..
P74
This section contains 7 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of which ONLY ONE is correct.
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P76
2.10 mol of an ideal gas confined to a volume of 10 L is released into atmosphere at 300 K where the pressure is 1 bar. The work done by the gas is
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3.The solubility of Tl2S in pure CO2-free water is 6.3 x 10–6 M. Find out the Ksp of Tl2S if is 10–14 and
= 10–7.
P79
4.The following curve shows the change in pH during the course of titration of weak acid HA with a strong base. At which point in the titration curve is the concentration of acid equal to the concentration of base?
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