Physics question and answers for April 03, 2024
- Q The horizontal part of the U shaped tube shown in the figure 10 cm and its vertical branches are long enough The cross section of the tube is 1 cm...
- Q Ans 25113 6 N m 3 A U tube differential manometer connects two pressure pipes A and B Pipe A contains carbon tetrachloride having a specific gravity 1 594 under...
- Q A string is stretched by a block going over a pulley The horizontal string vibrates in fifth harmonic in unison with a particular tuning fork When a beaker containing a...
- Q A liquid drop of radius 5R is kept in the open atmosphere of pressure Po C is the centre of the liquid drop Two air bubbles are formed inside the...
- Q When water freezes into ice its volume increases by 2 A rigid spherical shell is filled completely with water at 0 C Now water is freezed completely then Bulk stress...
- Q For an aircraft to travel above Mach 1 work out the velocity required both at sea level and at a cruise altitude of 10 000m with y 1 4 and...
- Q The excess pressure inside a soap bubble of radius 10mm is balanced by a liquid column of 0 04 cm Determine the density of liquid surface tension of soap bubble...
- Q A tank is filled up to a height 2H with a liquid and is placed on a platform of height H from the ground The distance x from the ground...
- Q Max Mark s 01 Multiple Choice Select 1 out of 4 options for the question below As shown following three figures three blocks of different densities 2 and 3 are...
- Q A Venturi tube is used to measure the speed of a vertically ascending submarine At a given instant the mercury difference in the U shaped arm is h Determine the...
- Q Suppose that a 15m s wind is blowing across the roof of your house The den sity of air is 1 29 kg m a determine the reduction in pressure...
- Q 17 Two rectangular glass slabs of length I and width b are stuck to each other with a liquid film of surface tension T in between them as shown in...
- Q 0 In a hypothetical situation if the viscous force acting on a spherical object of radius r is given as F Av where v is the velocity of the ball...
- Q A thin capillary of radius 0 1mm is dipped in a liquid with density 1000 kg m surface tension 0 03N m and contact angle 60 If the atmospheric pressure...
- Q 9 A liquid drop of radius 2 cm is just about to fall off the mouth of a tap of radius 2 mm If the density of the liquid is...
- Q The volume flow rate of a liquid through a pipe of radius r and length l is Q under a pressure head of P then find the volume flow rate...
- Q 4 A viscous fluid is flowing in a pipe maintained under some pressure difference If the radius and length of the pipe is doubled by what factor should the pressure...
- Q Mark the correct statement s about reynold s number a It is the ratio of inertial force of the fluid to the viscous force offered by the fluid b Increases...
- Q A wire frame in the shape of circle of radius 2 cm is dipped in soap solution and taken out so that a film is formed If the tension developed...
- Q 0 A piece of wood has dimension axbxc It is floating in a liquid of density p such that side a is vertical It is now pushed down gently and...
- Q If the volume flow rate through the pipe AB is Q find the volume flow rate through pipe CD The radius of CD and EF are in ratio 2 1...
- Q Q4 A hole is made on the wall of the cylindrical vessel containing a liquid upto a height h Water is coming out through the hole and falls at a...
- Q Consider a situation in which there is a Newtonian fluid between two long coaxial uniformly moving cylinders of radius R and 2R A Force per unit length required to keep...
- Q 6 Read the following passage and answer the questions given below In fluid mechanics Pascal s law plays a very important role to explain the variation of pressure across the...
- Q 2 A cylindrical water tank of 10 m depth is completely filled with water Find the velocity of the efflux of water through a small hole on the side wall...
- Q 45 An open pipe of sufficient length is dipping in water with a speed v vertically If at any instant I is length of tube above water then the rate...
- Q A wire is bend at an angle 0 A rod of mass m can slide along the bend wire without friction as shown in figure If a soap film is...
- Q A ball of mass m is dropped from a great height After it has fallen through 50 m it attains its terminal velocity and continues to fall The work done...
- Q A side wall of a wide open tank is provided with a narrowing tube through which water flows out The cross sectional area of the tube decreases from S 3...
- Q A solid body floats in liquid at temperature 0 C and is completely submerged in it at 50 C What fraction fo volume of the body is submerged in the...
- Q A vertical venturi meter is installed in a pipeline 30 cm diameter The throat to pipe diameter ratio is 1 3 Water flows through the system The pressure in the...
- Q A capillary tube of length 50 cm is closed at both ends In contains air on both sides separated by a mercury column of length 10 cm When tube is...
- Q A venturi meter is used to measure liquid flow rate of 7500 litre min The difference in pressure across the venturi meter is equivalent to 8 m of the flowing...
- Q Consider a ping pong ball filled with air and which is fully submerged in water due to a string which tethers it to the bottom of a full beaker What...
- Q A solid sphere of radius R and density p is attached to one end of a mass less spring of force constant k The other end of the spring is...
- Q A large cylindrical vessel containing a liquid of density is kept on a horizontal surface A small spherical object of density p a is fastened to the bottom of the...
- Q 6 A cylindrical tube with its base as shown in the figure is filled with water It is moving down with a constant acceleration a along a fixed inclined plane...
- Q Paragraph for Questions 10 to 12 Read the paragraph carefully and answer the following questions An open rectangular tank 8mx5m x 4m initially filled with water upto height 3m is...
- Q A container having rectangular base filled with water is accelerating towards right with acceleration a 8 3 on a horizontal plane as shown in figure If points A B C...
- Q A uniform wooden stick of length L cross section area A and density d is immersed in a liquid 4d A small body of mass m and negligible volume is...
- Q Another liquid II which II does not mix with I is poured into one side The liquid levels of the two sides is found the same while the level of...
- Q The pressure in a water tower is 39 877 Pascals N m higher than at an open faucet The density of water is 1000 Kg m Use Bernoulli s equation...
- Q Two identical balls are connected by weightless inextensible cord thrown over ideal pulley One of the balls is immersed into a vessel with a liquid With what steady velocity V...
- Q Due to its higher density cold water stays close to the bottom of a rectangular vessel which is filled up to the height of h 30 cm We assume that...
- Q Consider a horizontally oriented syringe containing water located at a height of 1 25 m above the ground The diameter of the plunger is 8 mm and the diameter of...
- Q A liquid stands at the plane level in U tube when at rest If areas of cross section of both the limbs are equal what will be the difference in...
- Q Q7 A vertical U tube of uniform cross section contains mercury density 13 6 g cc in both arms Alcohol density 1500 Kg m column of length 0 1m is...
- Q Q4 A wooden block with a coin placed on its top floats in water as shown in the figure The distance and h are shown there After some time the...
- Q 3 5 x 4 cm s 4 4 x 5cm s FL0061 52 If the terminal speed of a sphere of gold density 19 5 kg m is 0 2...
- Q A Rod Inside a Capillary Tube A glass rod of diameter 1 5 mm is inserted symmetrically into a glass capillary tube of inside diameter 2 mm Now this arrangement...
- Q 4 3 m c Up to any height b 10 m d Insufficient information 7 A piece of ice tied with the help of a thread to bottom of a...
- Q tube containing liquid of density horizontally with acceleration g The pressure at A will be atmospheric pressure is Po p accelerating AB 1 Po 3pgh 3 P pgh 2h a...
- Q 141 The volume of an air bubble is doubled as it rises from the bottom of lake to its surface The atmospheric pressure is 75 cm of mercury The ratio...
- Q A block of wood is floating in water at 0 C The temperature of only water is slowly raised from 0 C to 10 C With the rise in temperature...
- Q A 0 5 kg mass of lead is submerged in a container filled to the brim with water and a block of wood floats on top The lea mass is...
- Q Two identical beakers are filled with water up to the brim On placing a wooden block in beaker 2 the wooden block floats on the surface and excess water flows...
- Q 1 An air bubble doubles its radius on raising from the bottom of water reservoir of the surface of water in it If the atmospheric pressure is equal to 10...
- Q A cubical block of mass 5kg and side 10cm is pressed against a rough wall u 0 9 with a force F passing through the centre of cube inside a...
- Q A bucket of water of mass 10 kg is pulled at constant velocity up to a platform 45 meters above the ground This takes 18 minutes during which time 5...
- Q A ball of mass m and density is completely immersed in a liquid of density p contained in an accelerating vessel as shown Select the correct answer using the codes...
- Q 5 091 x 10 J The radii of two air bubbles are in the ratio 4 5 Find the ratio of excess pressure inside Also compare the works done in...
- Q 1 On a horizontal floor two identical cylindrical vessels A and B connected by a thin tube near their bottoms contain some water When an ice block of volume 100...
- Q 0 A tube of length L is filled completely with a incompressible liquid of mass M and closed at both the ends The tube is then rotated in a horizontal...
- Q A nurse is injecting a child with 3 0 10 3 kg of vaccine With what magnitude of force assumed constant must the nurse push on the plunger of the...
- Q ALLEN A thin liquid film formed between a U shaped wire 6 and a light slider supports a weight of 1 5 x 10 N as shown in the figure...
- Q Consider a hollow pipe of infinite length and radius R The pipe has uniform distribution of charge on its surface The pipe is rotating about its axis with angular velocity...
- Q 6 A drop of olive oil of radius 0 25mm s circular film of radius 5cm on the water surface Estimate the thickness of the film 1 8 3x10 10m...
- Q 79 If 0 is the fraction of the surface covered at PA pressure of the adsorbate A then A rate of adsorption is proportional to 0 PA B rate of...
- Q 00 A fixed cylindrical large cross section tank having area is filled with two liquids of densities p and 2p upto equal height h as shown in figure If a...
- Q Water jet coming out of a stationary horizontal tube at speed v 2m s strikes horizontally a massive wall moving in opposite direction with same speed Water comes to rest...
- Q A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out then the...
- Q When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body the pressure intensity varies a linearly with radial distance b as the square...
- Q rock with density 1700 kg m is suspended from the lower end of a light string When e rock is in air the tension in the string is 48 0...
- Q If a soap bubble is given an electric charge then its radius gag m ya fagya endu faul Gidi de qua OPTIONS CLEAR SELECTION A B MARK FOR REVIEW C...
- Q Select the correct statement s 1 Viscosity of gases Increases with Increase i Temperature 2 Viscosity of gases decreases with Increases temperature 3 Viscosity of gases may independent of temperatu...
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