Physics question and answers for March 26, 2024
- Q 11 A metal piece of mass 160 g lies in equilibrium inside a glass of water figure 13 E4 The piece touches the bottom of the glass at a small...
- Q 28 Water flows through a horizontal tube of variable cross section figure 13 E7 The area of cross section at A and 2 and 2 mm respectively If 1 cc...
- Q 5 A cubical box is to be constructed with iron sheets 1 mm in thickness What can be the minimum value of the external edge so that the cube does...
- Q in the two arms of the manometer shown in figure 13 E1 are 2 cm and 8 cm Atmospheric pressure 101 x 10 N m Find the pressure of the...
- Q sides 13 A cubical block of ice floating in water has to support a metal piece weighing 0 5 kg What can be the minimum edge of the block so...
- Q A liquid is flowing in streamline manner in a pipe 1 with rate of x If the same liquid is flowing in a pipe of radius half of pipe 1...
- Q 15 Consider water moving through a pipe The diameter of the inlet is 10 cm and the diameter at the outlet is 7 cm What is the velocity at the...
- Q An inverted hollow cone of height H and radius at the top R is filled completely with a liquid of density d Neglect atmosphere pressure a Find horizontal component of...
- Q 1 A small block of material having relative density is immersed in a liquid and released The 3 block starts moving upwards with an acceleration a The value of a...
- Q 5 Find out the correct direction for the flow of water in the given system A 1 3 Y 12 Y 9 AB CK TK OP 12 TP 7 Y...
- Q Q 15 A liquid of density p is filled in a conical vessel as shown in Fig Force exerted by liquid on side wall is A R pgh B R...
- Q m m pV P F F PA Pgauge P Po P Po pg F Pfluid9 Vsubmerged A V t Po 1 atm 1 0 x 105 Pa Pwater 1000 kg...
- Q effect An iron sphere is dropped into a viscous liquid Which of the following represents its acceleration a versus time t graph a4 1 3 f a4 2 4 a4...
- Q A sealed vessel contains water p 1000 kg m upto height h 3 5 m The space above the water contains compressed air at pressure 4 2P Po atmospheric pressure...
- Q A wooden plank of length I m and uniform cross section is hinged at one end to the bottom of a tank as shown The tank is filled with water...
- Q A vessel has cross section area A up to height 2h and area A for further height h A and B are two points in fluid at the bottom of...
- Q 3 A cube of ice floats ice floats partly in water and partly in kerosene oil Find the ratio of the volume of ice immersed in water to that in...
- Q One end of a long iron chain of linear mass density is fixed to a sphere of mass m and spec density 1 3 while the other end is free...
- Q Why does velocity increase when water flowing in broader pipe enters a narrow pipe
- Q 38 A solid sphere of mass m suspended through a string in a liquid as shown The string has some tension Magni of net force due to liquid on upper...
- Q A vessel contains oil density 0 8 gm cm over mercury density 13 6 gm cm A homoge sphere floats with half its volume immersed in mercury and the other...
- Q 11 The surface tension of liquid is 5 N m If a film of this liquid is held in a ring of 0 02 m then total surface area potential...
- Q 10 The height of mercury column in a barometer in a Calcutta laboratory was recorded to be 75 cm Calculate this pressure in SI and CGS units using the following...
- Q 13 The unit of the coefficient of viscosity in S I system is a m kg s b m s kg2 c kg m s kg m s 24 Systematic...
- Q of length L is pivoted at the bottom of a pond of depth stays in stable equilibrium 2 as shown in figure The rod can freely rotate about pivot If...
- Q The amount of work done in blowing a soap bubble such that its diameter increases from d to D is T surface tension of the solution 1 4n D2 d...
- Q 17 A film of soap solution is trapped between a vertical frame and a light wire ab of length 0 1 m If g 10 m s then the load...
- Q A horizontal pipe 150 mm in diameter is joined by sudden enlargement to a 225 mm diameter pipe water is flowing through it at the rate of 0 05 m...
- Q 2010 4 A uniform long tube is bent into a circle of radius R and it lies in vertical plane Two liquids of same volume but densities p and 8...
- Q In the setup shown two identical vessels A and B filled with water up to same level are connected by a horizontal tube equipped with a valve that is closed...
- Q 9 A pump is used to deliver water at a certain rate from a given pipe To obtain n times water from the same pipe in the same time by...
- Q 5 A container holds two immiscible ideal fluids of as shown in H density d and 2d each of height 2 figure The height h as shown in figure at...
- Q with a liquid up to height H as shown in figure There are two holes in the container such that water coming out from them have same range If the...
- Q 19 The weight of a body in water is one third of its weight in air The density of the body is 1 0 5 g cm 2 1 5...
- Q Water flows in a horizontal tube as shown in figure The pressure of water changes by 600 N m between x and y where the areas of cross section are...
- Q 28 A straw 6cm long floats on water The wate film on one side has surface tension of dyne cm on the other side camphor reduc the surface tension to...
- Q d 6 8 A block of wood with a metal plate placed on its top floats in water as shown in figure with x 2 cm and y 50 cm...
- Q 3 A piece of wood is floating in water When the temperature of water rises the apparent weight of the wood will 1 Increase 2 Decrease 3 May increase or...
- Q Two circular plates of radius 5 cm each have a 0 01 mm thick water film between them Then what will be the force required to separate these plate S...
- Q 1 3 T 33 Pressure inside two soap bubbles are 1 02 atm and 1 05 atm respectively The ratio of their surface area is 125 25 4 2 3...
- Q Two spheres of volume 250 cc each but of relative densities 0 8 and 1 2 are connected by a string and the combination is immerssed in a liquid The...
- Q A liquid of density d is pumped by a pump P from situation i to situation ii as shown in the diagram If cross section of each of the vessel...
- Q A tank is filled upto a height n placed on a platform of height h fromt he ground To get maximum range x a small hole is punched at a...
- Q A small ball of density 4p0 is left from the surface of liquid The density of liquid varies as p Po 1 ay where y is height of liquid from...
- Q An open U tube contains mercury When 13 6 cm of water is poured into one of the arms of the tube then the mercury rise in the other arm...
- Q SO An empty plastic box of mass m is found to accelerate up at the rate of g 6 when placed deep inside water How much sand should be put...
- Q B Water and oil are poured into the two limbs of a U tube containing mercury The interfaces of the mercury and the liquids are at the same height in...
- Q The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury If the density of mercury be 13...
- Q 29 A liquid drop of mass m and radius ris falling from great height Its velocity is proportional to 2 7 7 177
- Q 1 2 glass plates have water between them and are separated by very small distance see figure it is very difficult to pull them apart It is because the water...
- Q Continent density 2800 kg m Mantle rock density 3300 kg m Problem 5 The figure above on the left shows an iron ball suspended by thread of negligible mass from...
- Q 29 A light cylindrical vessel is kept on a horizontal surface Its base area is A A hole of cross A sectional area is made on side wall just at...
- Q A large cylindrical container with open top contains a liquid upto height 2H 8m and whose density varies as shown in the figure Atmospheric pressure is 1 atm 10 N...
- Q A tank of cross sectional area A is filled with a liquid A small orifice of area A A A is pesent at the bottom of the tank At a...
- Q 2 A motor of power P is used to deliver water at a certain speed through a given horizontal pipe To increase the speed of water through the same pipe...
- Q 3 Goes out in a straight line 4 A concrete sphere of radius R has a cavity of radius r which is packed with of concrete and sawdust are respectively...
- Q The thrust acting on the base of vessel filled with water is take g A 10 N B 1 5 x 104 N C 2 104 N D 3 x...
- Q 5 A barometer correctly reads the atmospheric pressure 76 cm of mercury Water droplets are slowly introduced into the barometer tube by a dropper The height of the mercury column...
- Q A container is filled with liquid upto height H as shown in figure There are 2 holes in the container such that water coming out from them have same range...
- Q A steel wire having cross sectional area 1 2 mm is stretched by a force of 120 N If a lateral strain of 1 455 mm is produced in the...
- Q 9 Liquid is filled in a container Find the value acceleration a for which point x is exposed to as shown in the figure 1 3g L L X 2...
- Q If the velocity of water layers in river is given by v ky where y is the height from the river bed The force required to keep a square plate...
- Q force of 1 N is required to move a metal plate of area 10 2 m with a velocity of 2 x 10 2 m s when it rests on...
- Q Water flows through a pipe bent at an angle a to the horizontal with a velocity v What is the force exerted by water on the bend of the pipe...
- Q reache 1 2H g 2 H g 3 2H 3g When a hole is made in the side of a container holding water water flows out and follows a parabolic...
- Q flow If pressure diffe through a single capillary of length L and radius R R is X Now two capillaries of length L 8nl and 2 L and radius R...
- Q electron goes past the coil The cylindrical tube of a spray pump has radius R one end of which has n fine holes each of radius r If the speed...
- Q A wooden cube just floats inside water with a 200 gm mass placed on it When the mass is emoved the cube floats with its top surface 2 cm bove...
- Q A gardener waters the plants by a pipe of diameter 1mm The water comes out at the rate of 10 cc sec The reaction force exerted on the hand of...
- Q A large open tank has two small holes in the wall One is square hole of side L at a depth y from the top and the other is a...
- Q A spherical body is thrown in a long column of viscous liquid with speed greater than terminal speed VT The correct variation of the speed v with time t is...
- Q 6 The bottom of a cylindrical vessel has a circular hole of radius r at depth h below the water level in it If diameter of the vessel is D...
- Q Water flows in a streamlined manner through a capillary tube of radius a the pressure difference being p and the rate of flow Q If the radius is reduced to...
- Q A meter long narrow bore held horizontally Closed at one end contains 76 cm long mercury thread which traps 15 cm column of air The length of air column becomes...
- Q A hemispherical portion of radius R is removed from the bottom of a cylinder of radius R The volume of the remaining cylinder is V and its mass is M...
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