Physics question and answers for March 31, 2024
- Q Three liquids have same surface tension and densities 0 02 and 03 0 02 03 In three identical capillaries rise of liquid is same The corresponding angles of ontact 0...
- Q Wax is coated on the inner wall of a capillary tube and the tube is then dipped in water Then compared to the unwaxed capillary the angle of contact and...
- Q A large tank is filled with water density 10 kg m A small hole is made at a depth 10m below water surface The range of water issuing out of...
- Q The radius of a soap bubble is r and surface tension of the soap solution is S The electric potential to which the soap bubble be raised by charging it...
- Q A large tank is filled with water density P upto height h Water is coming out from section 4 Fluid pressure at section 3 at the instant shown is Given...
- Q This section contains 35 SINGLE CORRECT TYPE Read More The temperature of water is increased from 0 C to 20 C by heating it The volume of the water O...
- Q There is a circular tube in a vertical plane Two liquids which do not mix and of densities d and d are filled in the tube Each liquid subtends 90...
- Q Q 20 A drop of water and a soap bubble have the same radii Surface tension of soap solution is half of that of water The ratio of excess pressure...
- Q A target object is placed at the bottom of a tank of depth 20 m and filled with a liquid of density 500 gm cc Another object of density 100...
- Q Q1 Two vessels A and B have the same base area and contain water to the same height but the mass of water in A is four times that in...
- Q Q2 A liquid of mass 1 kg is filled in a flask as shown in figure The force exerted by the flask on the liquid is g 10 m s2...
- Q A wooden ball of mass m density o is kept inside water density p a by the help of a massless string shown in the figure One end of the...
- Q The opening near the bottom of the vessel shown in figure has an area A A piston is held against the opening to keep the liquid from running out Let...
- Q Q17 A tank contains water on top of mercury as shown in figure A cubical block of side 10 cm is in equilibrium inside the tank The depth of the...
- Q Estimate the time needed for glycine molecule to diffuse a distance of 20 m in water at 20 C Assume the diffusion constant is 9 5x10 4 mm 2 s...
- Q A drop of radius 2 x 10 m moves with V 5 8 cm s Then the viscous force on the drop at the terminal speed is Given air 18...
- Q 4 Consider the figure and mark the correct option Piston A 8PM Fresh water Piston B Concentrated sodium chloride solution in water B a Water will move from side A...
- Q A conical paper cup is to hold a fixed volume of water Find the ratio of height to base radius of the T p h cone which minimizes the amount...
- Q A ball is thrown downward with some velocity into a viscous liquid Which of the following curves may represents the possible variation for velocity versus time Options All of these...
- Q A piston cylinder with a cross sectional area of fine to another piston cylinder with a cross sectional area of 0 05 m Assume that both chambers and the line...
- Q 10 A stone of mass 30 gram is placed in a measuring cylinder containing some water The reading water level increases from 50 cm to 60 cm What is the...
- Q 6 Two identical communicating containers have water filled into them A spherical ball of ice relative density 0 9 having volume 100 cm is put into the left vessel Calculate...
- Q Along a stream line of a liquid flow 1 The velocity of a fluid particle remains constant 2 The velocity of all fluid particles crossing a given position is constant...
- Q A metal sphere of radius R density Q moves with terminal velocity vi through a liquid of density o Another sphere of same radius but of density Q2 moves through...
- Q An inverted U tube manometer containing oil S G 0 8 is located between two reservoirs as shown in the figure below The reservoir on the left which contains carbon...
- Q SolveLancer Test From bottom of an ocean a bullet is fired in vertical direction with a velocity of 50 m s Density of bullet is 2000 kg m and density...
- Q When a capillary tube is immersed in water vertically water rises to a height h inside the tube f the radius of another capillary tube is 1 3rd that of...
- Q Two identical containers have the same volume TW of water in it Each of them is placed on a balance and readings of the two balances are same There is...
- Q A solid cylinder is rolling up without sliding on a rough inclined plane The frictional force acting on it is Upward along the plane Downward along the plane 3 Zero...
- Q U tube with limbs of diameters 5mm and 2mm contains water of surface tension 10 2 N m angle of contact is zero and density 10 kg m The difference...
- Q DIMENSIONAL FINDINGS Turpentine oil is flowing through a tube of length I and radius r The pressure difference between the two ends of the tube is P The viscosity of...
- Q A solid hemisphere of radius R is made to just sink in a liquid of density p Consider hydrostatic force only i e do not take atmospheric pressure into consideration...
- Q CAPILLARY TUBE RISE Water rises to a heighth in capillary tube If the length of capillary tube above the surface of water is made less than h then a water...
- Q A certain number of spherical drops of a liquid of radius T coalesce to form a single drop of radius R and volume V If T is the surface tension...
- Q filled with same volume of two liquids of densities and 2p is moving with an acceleration a on the horizontal plane If the height difference between the two surfaces open...
- Q Horizontal tube of non uniform cross section has radii of 0 1m and 0 05m respectively at M and N For a streamiline flow of liquid the rate of liquid...
- Q When incompr rises up in a vertical tube of uniform cross sectional area Its kinetic energy per unit length at an instant 1 Decreases with height 2 Increases with height...
- Q Two vessels A and B have the same base area and contain water to same height but the mass of water in A is four times that in B The...
- Q Soap solution is used for cleaning dirty clothes because surface tension of solution is decreased viscosity of solution is increased temperature of solution is decreased surface tension of solution in...
- Q A small metal sphere of mass M and density d when dropped in a jar filled with liquid moves with terminal velocity after some time The viscous force acting on...
- Q If pressure at half of the depth of lake is equal to 3 pressure at the bottom of the lake then what 4 is the depth of the lake Patm...
- Q A metal sphere of mass m and density 0 falls with terminal velocity through a container containing liquid The density of liquid is 0 The viscous force acting on the...
- Q 4 12 cm of water less than atmospheric pressure w w to 29 A solid of mass 1 6 kg and density 2 4 x 10 kgm is completely immersed...
- Q 9 The height of mercury in a barometer at sea level is higher than that at the top of a hill Which of the following inferences about this observation is...
- Q I think in calculating fractional char ge in density only gamma T is used why it is dividing Answer 3 When the temperature of a liquid is increased by AT...
- Q Streamline flow is more likely for liquids with i High density ii High viscosity iii Low density iv Low viscosity Correct option is Question Type Single Correct Type 1 2...
- Q 2 28 A long thin string has a coat of water on it The radius of the water cylinder is r After some time it was found that the string...
- Q A cylindrical tank is filled with water to level of 3 m A hole is opened at height of 52 5 cm from bottom The ratio of the area of...
- Q 8 A glass tube of radius R is covered with a liquid film at its one end Air is blown slowly into the tube to gradually increase the pressure inside...
- Q An open square tank of side 1m is com pletely filled with water If the tank is m oved with an acceleration at 10ms fi nd the slope of the...
- Q on a horizontal surface A small spherical object of density p 0 is fastened to the bottom of the vessel with the help of the vessel with the help of...
- Q A spherical ball contracts in volume by 0 08 when subjected to a normal uniform pressure of 500 atm What is the bulk modulus of ball a 4 7 x...
- Q Three holes A B and C are made in an empty can at different levels one over the other as shown in the figure They are temporarily closed with an...
- Q 29 The time period of a bob performing simple harmonic 4 10 kg m motion in water is 2s If density of bob is 3 then time period of bob...
- Q A piece of steel has a weight w in air w whe completely immersed in water and w whe completely immersed in an unknown liquid The relative density specific gravity...
- Q A liquid of density p is completely filled in a cubical container as shown in figure Neglect the atmospheric pressure match the quantities in List I with corresponding expression in...
- Q An object hangs from a spring balance The balance registers 30 N in air 20 N when this object is immersed in water and 24 N when the object is...
- Q A 1 00 kg beaker containing 2 00 kg of oil density 916 0 kg m rests on a scale A 2 00 kg block of iron is suspended from...
- Q 32 A body B is capable of remaining stationary inside a liquid at the position shown in Fig a If the whole system is gently placed on smooth inclined plane...
- Q if excess pressure inside a spherical soap bubble of radius 1 cm is balanced by that due to a column of oil of specific gravity 0 9 1 36 mm...
- Q The figure shows a conical container of half apex angle 37 filled with certain quantities of kerosene and water The force exerted by the water on the kerosene is approximately...
- Q A bubble of radius R is at the bottom of a vessel filled with water making a circular contact of radius r with the bottom of the vessel If r...
- Q A container is accelerating with acceleration a g along the direction as shown below The angle 0 in degree made by the liquid surface with the vertical wall of the...
- Q A candle of radius 1 cm is floating in a liquid in a cylindrical container of radius 1 m If the candle is burning at the rate of 1 5...
- Q Mercury is poured into a U tube in which the cross sectional area of the left hand limb is three times smaller than that of the right one The level...
- Q Two vertical conducting cylinders A and B of different cross sections are connected by a thin tube as shown An ideal gas is trapped in the cylinders by two airtight...
- Q 50 A solid cylinder of length is in equilibrium in two different liquids A and B as shown in the figure If P density of the cylinder is P then...
- Q estion 11 A rectangular vessel of dimension lxbxh and mass M contains a liquid of density p The vessel has an orifice at its bottom at a distance c from...
- Q A liquid flows out of a broad vessel through a narrow vertical pipe The height of the liquid level in vessel is H from the lower end of the pipe...
- Q A container filled with air under pressure Po contains a soap bubble of radius R The air pressure has been reduced to half isothermally and the new radius of the...
- Q A solid cone of uniform density and height 2K and base R has a conical portion scooped out from its base with the same base radius but height R as...
- Q A light ray falls on a square glass slab as shown in the diagram The index of refraction of the glass if total internal reflection is to occur at the...
- Q 7 A wooden ball of density D is immersed in water of density d to a depth h below the surface of water and then released Upto what height will...
- Q heats a metal rod The wire provides a constant power P to the rod The metal rod is enclosed in an insulated container It is observed that the temperature T...
- Q The two feet of a 60kg person cover an area of 500 cm Find the pressure exert by the two feet on the ground Select one O a 1 17kPa...
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