Tripura TRB STPGT Physics 2016 Paper
Two particles are projected simultaneously in the same vertical plane, from the same point, but with different speeds and at different angles to the horizontal. The path followed by one, as seen by the other is
(a) a vertical straight line
(b) a parabolic path
(c) a straigth line making a constant angel ( Not equal to 90 degree) with the horizontal
(d) None of the above
The force which is always directed away or towards a fixed point and magnitude of which is a function of distance from the fixed centre only, known as
(a) centripetal force
(b) central force
(c) centrifugal force
(d) None of the above
The number of degree of freedom of a rigid body is
(a) 3
(b) 6
(c) infinity
(d) None of the above
Two men support a uniform horizontal beam at its two ends. If one of them suddenly lets go, then the force exerted by the beam on the other man will
(a) remain unaffected
(b) decrease
(c) increase
(d) None of the above
A solid sphere rolls without slipping on a rough horizontal floor, moving with a speed v. It makes an elastic collision with a smooth vertical wall. After impact
(a) it will move with a speed v initially
(b) its motion will be rolling without slipping
(c) its motion will be stopped
(d) None of the above
If I1 and I2 represent moment of inertia of a ring and a disc about their axis passing through their centre and perpendicular to thier planes and made from same material then
(a) I1=I2
(b) I1<I2
(c) I1>I2
(d) None of the above
A satellite is revolving around a earth in a circular orbit. If the radius of the orbit decreases by 1%, then the speed of the satellite will
(a) increases by 0.5%
(b) decrease by 0.5%
(c) increase by 1%
(d) None of the above
The kinetic energy needed to project a body of mass m from the earth’s surface to infinity is
(a) mgR/4
(b) mgR
(c) mgR/2
(d) None of the above
It two bubbles of different radii are connected by a hollow tube
(a) air flows from the bigger bubble to smaller bubble
(b) air flows from the smaller bubble to bigger bubble
(c) there is no flow of air
(d) None of the above
If air is pushed in a soap bubble, then the pressure in it
(a) decreases
(b) increases
(c) remains same
(d) None of the above
A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of water in the capillary tube is 5 gm. Another capillary tube of radius 2r is immersed in water. The mass of water that will rise in this tube is
(a) 2.5 gm
(b) 10 gm
(c) 20 gm
(d) None of the above
A hole is near the bottom of a tank. The volume of liquid emerging from the hole does not depend upon
(a) height of liquid level above the hole
(b) area of the hole
(c) density of the liquid
(d) None of the above
The velocity profile of a liquid flowing through a capillary is
(a) straight line
(b) hyperbolic
(c) parabolic
(d) None of the above
A rod is supported on two knife edges and loaded in the middle. The depression at the centre is noted. The knife edges are shifted slightly outward. The depression will
(a) decrease
(b) increase
(c) remain same
(d) None of the above
A heavy uniform rod is hanging vertically from a fixed support. It is stretched by its own weight. The diameter of the rod is
(a) smallest at the top and gradually increases down the rod
(b) largest at the top and gradually decreases down the rod
(c) maximum in the middle point
(d) None of the above
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