Physics-
General
Easy
Question
The load versus elongation graph for four wires of the same material and same length is shown in the figure. The thinnest wire is represented by the line
- OA
- OB
- OC
- OD
The correct answer is: OA
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physics-
A cylindrical container of length L is full to the brim with a liquid which has mass density 
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A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. If instead of being pushed down by a rod, the ball is held in place by a thin string attached to the bottom of the container as shown on the right. What is the tension T in the string?
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A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the reading of the scale when the ball is fully immersed
A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the reading of the scale when the ball is fully immersed
physics-General
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A cylindrical container of length L is full to the brim with a liquid which has mass density 
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A cylindrical container of length L is full to the brim with a liquid which has mass density It is placed on a weigh tscale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the mass M of liquid which overflowed while the ball was being pushed into the liquid?
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Velocity of efflux in Torricelli's theorem is given by 
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Velocity of efflux in Torricelli's theorem is given by , here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. At what distance from point O, will be liquid strike on the ground?
physics-General
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Velocity of efflux in Torricelli's theorem is given by , here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. What is its time of fall of liquid on the ground?
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A glass full of water is placed on a weighing scale, which reads 10 N. A coin with weight 1 N is gently released into the water. At first, the coin accelerates as it falls and about halfway down the glass, the coin reaches terminal velocity. Eventually, the coin rests on the bottom of the glass. Acceleration due to gravity is 
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The diagram shows a force-extension graph for a rubber band. Consider the following statements
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II) Rubber does not return to its original length after it is stretched.
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A solid right cylinder of length 
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A closed cylinder of length 
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The graph shows the extension of a wire of length 1m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross sectional area of the wire is 1 m 
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The tube shown is of non-uniform cross-section. The cross-section area at A is half of the cross-section area at B,C and D. A liquid is flowing through in steady state. The liquid exerts on the tube Statement I) A net force towards right. Statement II) A net force towards left. Statement III) A net force in some oblique direction. Statement IV) Zero net force Statement V) A net clockwise torque. Statement VI) A net counterclockwise torque
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physics-General
