Physics question and answers for March 29, 2024
- Q A bent tube is lowered into a water stream as shown in figure 7 57 The velocity of the stream relative to the tube is equal to v 2 5...
- Q Water rises to a height h in a capillary tube held vertically in a beaker containing water If the capillary tube is inclined at an angle 30 with the water...
- Q 45 Derive the relation between the surface tension and surface energy of a liquid OR Derive the relation between surface tension and OR surface energy per unit area Show that...
- Q A ball floats on water but will sink when put into mineral spirits mineral spirit is immiscible in water If the mineral spirits is poured slowly on top of the...
- Q A B Speed of B just after the impulse imparted is 7m IOJ 7m 3 J C Speed of C just after the impulse imparted is 7m 4 22 2J...
- Q A semi circular vertical plate is partially submerged in the water with 6 meters diameter What is the force on the plate due to hydrostatic pressure if the water level...
- Q MePhIT BOT Today at 6 14 PM 7 A 73kg man with a density of 1 10g cm 3 ages He gains 5 5kg of fat Will he float 1...
- Q 3 Calculate the pressure drop in mmHg across the following arterial systems using Poiseuille s Law with n blood 4 10 3 Pa s for a total flow of 80cm...
- Q 14 When water is filled carefully in a glass one can fill it to a height h above the rim of the glass due to the surface tension of water...
- Q A common hydrometer has a uniform stem graduated downwards from 0 1 2 upto 10 when floating in pure water it reads 0 and in a liquid of relative density...
- Q 1 When a capillary tube is dipped in a liquid the liquid rises to a heighth in the tube The free liquid surface inside the tube is hemispherical in shape...
- Q eater than 90 81 A soap bubble formed at the end of the tube is blown very slowly The graph between excess of pressure inside the bubble with time is...
- Q A tank is filled upto a height h with a liquid and is placed on a platform of height h from the ground To get maximum range xm a small...
- Q 3 A submarine called the DeepView 66 is currently being developed to take 66 tourists at a time on sightseeing trips to tropical coral reefs According to guidelines of the...
- Q A metallic wire of density p floats horizontally in water The maximum radius of the wire so that the wire may not sink will be surface tension of water T...
- Q A cylinder of height 30 cm and radius 7 cm is immersed completely in a fluid of density 1 3x10 kg m What is the buoyant force acting on it...
- Q 69 The flow rate of water from a tap of diameter 1 25 cm is 3 L per min The coefficient of viscosity of water is 10 3 Pa s...
- Q 12 An intravenous infusion is made under gravity If the fluid to be delivered has a density of 1 06 g cm 3 at what height above the vein h...
- Q The radius of a small oil drop falling in air is xx10 6m with a terminal velocity of 1mms X Find x Given specific gravity of oil 0 900 and...
- Q ent data 63 Eight drops of water each of radius 2 mm are fall through air at a terminal velocity of 8 cm s If the coalesce to form a...
- Q D A solid body floating in water has of its 5th volume immersed in it What fraction of its volume will be immersed if it floats in a liquid of...
- Q 7 A 79kg man with a density of 1 09g cm 3 ages He gains 5 3kg of fat Will he float 1 No he won t His specific gravity...
- Q 64 A drop of water of radius 0 0015 mm is falling in a the coefficient of viscosity of air is 2 0 x 10 kgm the terminal velocity of...
- Q h near the the Shearing bottom layer Pas MEG Objective NCERT P v If a bal 8M of same metal into a column of glycerme terminal velocity of the ball...
- Q c 0 005 m d 0 0005 m 57 A gas bubble of 2 cm diameter rises through a liquid of density 1 75 gm cm with a fixed speed...
- Q c Torricelli s law d Relative density 68 For turbulent flow the value of Reynolds number is a R 2000 b R 2000 c 1000 R 2000 d R 1000...
- Q A U Tube contains two liquids in static equilibrium Water in right arm and oil of unknown density in left arm Measurement given are 136 mm and d 12 mm...
- Q What is the net upward force on an airplane wing of area 17 2 m if the speed of air flow is 302 m s across the top of the...
- Q c 9 6 x 10 m d 3 6 x 10 m 33 In the figure shown an ideal liquid is flowing through the tube which is of uniform area...
- Q b Bernoulli d Torricelli PRESSURE 1 Pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and the walls by of containing vessel This law...
- Q A thread is tied slightly loose to a wire frame as shown in figure The frame is dipped in soap solution and taken out The frame is completely covered with...
- Q Que 11 Water flows in a horizontal tube as shown in figure The pressure of water changes by 600 N m 2 between A and B where the areas of...
- Q Let P represent the magnitude of the force experienced by a molecule in the free surface of a liquid and in contact with a solid surface whereas Q represents the...
- Q A container of large uniform cross section area A resting on a horizontal surface holds two immiscible non viscous and incompressible liquid of densities pand 2p Each of height H...
- Q A glass capillary tube of length and inside diameter d is submerged vertically into water The upper en of the capillary is sealed The outside pressure is standard To what...
- Q A U tube of uniform cross section shown in figure is partially filled with a liquid I Another liquid II which does not mix with liquid I is poured into...
- Q are 13 A mercury drop on a clean horizontal glass surface and a water drop on a horizontal glass plate coated with a thin layer of talcum powder similar in...
- Q 80 An aluminium sphere is dipped into water Which of the following is true Buoyancy will be less in water at 0 C than that in water at 4 C...
- Q 49 The velocity of the surface layer of water in a river of depth 20 m is 5 m s The shearing stress between the surface layer and the bottom...
- Q 42 A water container filled full with water having an orifice at its bottom are placed on the table of height 1 2m from the ground Water is continuously coming...
- Q The specific gravity of an object is 0 872 whereas hat of seawater is 1 025 Part A What percent of an object is above the surface of the water...
- Q 1 A vertical tank with depth H is full with water A hole is made on one side of the walls at a depth h below the water surface At...
- Q The hydraulic grade line for flow in a pipe of constant internal diameter fed 31 aug fy EISSTIC DE CIST a coincides with the physical centerline of the Fara pip...
- Q The radius of a soap bubble is r The surface tension of soap solution is T Keeping temperature constant the radius of th soap bubble is doubled the energy necessary...
- Q c 5m s 25 A wooden plank of length 1 m and uniform cross section is hinged at one end to the bottom of a tank as shown in figure...
- Q a 30 b 60 c 45 d 90 26 A horizontal oriented tube AB of length 5 m rotates with a constant angular velocity 0 5 rad s about a...
- Q A metallic square plate EFGH is suspended vertically with a pair of sides horizontal by a light inelastic string shown in the figure A beaker of the water is brought...
- Q According to Bernoulli s equation below the product of the area A of a cross section of a hose at a particular point and the velocity V of water travel...
- Q Mechanical Properties of Solids 36 A light rod of length 2 m is suspended from the ceiling horizontally by means of two vertical wires of equal length tied to its...
- Q 34 In a hydraulic lift force F isexerted on small cylinder A of radius 7cm This pressure is transmitted to a second cylinder of radius 14cm through a pipe C...
- Q 37 A vessel containing water stand on a table of height H A small hole is punched in the side of vessel at its base The steam of water strikes...
- Q liquid in capillary tube always remains constant 5 Assertion A thin stainless steel needle can lay floating on a still water surface Reason Any object floats when buoyancy force balances...
- Q 1 Assertion At critical temperature surface tension of a liquid becomes zero Reason At this temperature intermolecular forces for liquids and gases become equal Liquid can expand without any restriction
- Q In the figure shown water is filled in a symmetrical container Four pistons of equal area A are used at the four openings to keep the water in equilibrium Now...
- Q 13 Consider two identical cylindrical vessels one filled up to a height 1 0 m by a large number of plastic beads and the other filled up to same height...
- Q Is the below statement is correct for Venturi meter pls give explaination In the same Venturi meter two different values of the imposed pressure drop result in two different values...
- Q 16 One half of a rod of length 1 100 cm has density P 0 50 g cm and the other half has density p 2 50 g cm The...
- Q 20 A tube made of very thin glass sheet has mass m length 1 and cross section area S Its lower end is closed Up to what height h should...
- Q A homogeneous beam of length and square section of side leng held horizontally so that one of its long faces touches water in reservoir Density of material of the beam...
- Q 3 Assertion When a gas is allowed to expand work done by gas is positive Reason In expansion of a gas the force due to gaseous pressure and displacement of...
- Q A uniform cylinder made of a material of density p 250 kg m is held at rest in a pool so that its upper circular surface is in level with...
- Q 3 A piece of cork is floating on water in a small tank The cork oscillates up and down vertically when small ripples pass over the surface of water The...
- Q the horizontal Density of water is p 1 00 g cm 17 A wooden cylinder of cross section area S is connected with the bottom of a vessel by a...
- Q A tank of height H is fully filled with water If the water rushing from a made in the tank below the free surface strikes the floor at maximum horizontal...
- Q A U tube containing two different liquid of density p and 2p is fixed vertically on a rotating table as shown in the figure Initially table is at rest and...
- Q 180 kg 2 50 kg 3 60 kg At what speed the velocity head of water is equal to pressure head of 40 cm of hg 1 10 3 m...
- Q A long square wooden block is pivoted along one edge as shown The block is in equilibrium when immersed in water to the depth shown D d 0 6m Water...
- Q Two metal spheres are falling through a liquid of density 2 x 10 kg m with the same uniform speed The material density of sphere 1 and sphere 2 are...
- Q 7 34 An open rectangular tank 1 5 m wide 2m deep and 2m long is half filled with water It is accelerated horizontally at 3 27 m sec in...
- Q 12 A container with square base of side a is filled up to a height H with a liquid A hole is made at a depth h from the free...
- Q 3 A vessel containing water has area of cross section 16 cm A small square hole of side 1 cm is at the bottom What will be the time taken...
- Q 5 A uniform sphere of mass m and another uniform hemisphere of the same material and radius r are placed in a vessel In the vessel water is filled up...
- Q 5 Two parallel glass plates are dipped partly in the liquid of density d keeping them vertica the distance between the plates is x surface tension for the liquid is...
- Q 23 In the given figure the container slides down with acceleration a on an incline of angle 0 Liquid is stationary with respect to container Find out angle made by...
- Q Consider the system shown in the figure A ball of density o is tied to the bottom of the bucket which contains a liquid of density p p o The...
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