Physics question and answers for April 07, 2024
- Q c 55 A circuit area 0 01 m is kept inside a magnetic field which is normal to its plane The magnetic field changes from 2 tesla to 1 tesla...
- Q Q No 11 A cable that can support a load W is cut into two equal parts The maximum load that can be supported by either part is 2 3...
- Q If the ratio of lengths radii and Young s modulii of stee and brass wires in the figure are a b c respectively The the corresponding ratio of increase in...
- Q c 11 8 x 10 Am d 1 18 x 10 Am 4 A magnetising field of 2 x 10 A m produces a magnetic flux density of 8 x...
- Q A solid sphere of radius R made of material of bulk modulus k is surrounded by a liquid in a cylindrical container A massless piston of area A floats on...
- Q Q1 A glass capillary tube is of the shape of a trun cated cone with an apex angle a so that its two ends have cross sections of different radii...
- Q 1 0 km deep in sea Density of sea 1 025 x 10 kg m Bulk modulus of object 1 6 106 KPa Find out percentage change in density of...
- Q A water drop of radius 1 5 mm is falling from height 1 km having drag constant 0 5 density of water drop is 1000 kg m and density of...
- Q In a double slit experiment the wavelength of monochromatic light used is and the separation between the slits is d The screen is located at a distance D from the...
- Q The young s modulus E of a material measures how stiff it is the larger value of the morete tiff the material Consider a solid rectangular steel beam which is...
- Q A body of mass 0 01 kg starts to move in a viscous liquid with initial velocity 5 m s If drag force is 10 3 N then find time...
- Q Assume that if the shear stress in steel exceeds about 4 00 108 N m the steel ruptures a Determine the shearing force necessary to shear a steel bolt 1...
- Q The shear modulus of lead is 2 x 10 Pa A cubic lead slab of side 50 cm is subjected to a shearing force of magnitude 9 0 x 10...
- Q The Poisson s ratio of a material is 0 2 Due to a certain force length of wire elongates by 0 1 The percentage change in the volume of wire...
- Q Following four wires are made of same material Which will have maximum extension when subjected to same tension Length 10 cm radius 1 mm Length 20 cm radius 0 5...
- Q Liquid rises in a capillary upto a height of 8 cm The internal and external diameters of a second capillary are double that of first capillary the height of liquid...
- Q A block of mass 8 kg is placed on a surface as shown The dimensions of the box is 40cm x 20 cm x 10 cm What is the pressure...
- Q To protect a sensitive instrument from external megnetic jerks it should be placed in a container made of 1 Non magnetic substance 2 Diamagnetic substance 3 Paramagnetic substance 20
- Q 17 The proportional limit of steel is 8 x 108 N m2 and its Young s modulus is 2 x 10 11 N m2 The maximum elongation a one metre...
- Q A steel bar 1 25 cm in diameter and 5 cm long is removed from a 1200 C furnace and placed in a container of water at atmospheric pressure Estimate...
- Q Match the following A D converters with thei properties Types of A D converters A Dual Slope B Counter ramp C Successive Approximation Properties of A D converters 1 Fixed...
- Q 1 A rigid bar of weight W 900 KN is kept horizontal by the two rods one of aluminium and the other of steel Fig 3 93 Find the ratio...
- Q A capillary of radius r 0 2 mm is dipped vertically in a liquid of density p 1 gm cc A small piston x is inserted inside the capillary which...
- Q P A certain current liberates 0 504 g of hydrogen in 2 hr How many gram of copper can be liberated by the same current flowing for the same time...
- Q An oil drop of 10 excess electrons is held stationary under a constant electric field of 3 65 x 10 NC in Millikan s oil drop experiment The density of...
- Q SolveLancer Test Consider the diagram where block has weight of 200N AB and CD are two wires of different mater having same cross sectional area Due to block the elongation...
- Q 45 One mole of gas of specific heat ratio 1 5 being initially at temperature 290 K is adiabatically compressed to increase its pressure 8 times The of the gas...
- Q An iron bar Young s modulus 1011 N m a 10 6 C 1 m long and 10 3 m in area is heated from 0 C to 100 C...
- Q 3 Stress A Strain Stress B Strain Choose the correct statement 1 Material in A is ideal to make thin wire Material in B is ideal to make thin wire...
- Q A uniform metal rod of 2mm2 cross section is heated from 0 C to 20 C The coefficient of linear expansion of rod is 12 x 10 6 C Its...
- Q 29 Calculate the thermal stress developed in a rod kept on a smooth surface as shown in figure if the temperature of rod is increased by AT Y young s...
- Q 9 A hole is drilled in a copper sheet The diameter of the hole is 4 24 cm at 27 0 C What is the change the diameter of the...
- Q c A ball of mass m and radius r is released in 7 The viscous liquid The value of its terminal velocity is and proportional to 481 a 1 r...
- Q A brass rod of cross sectional area 1 cm and length 0 2 m is compressed lengthwise by a weight of 5 kg If Young s modulus of elasticity of...
- Q DE m 1 81 2 9 3 neet prep High Yielding Test Series Part Test 8 XIth Syllabus Contact Number 9667591930 8527521718 1 9 in 4 Isomeric 162 A man...
- Q a 2 kg c 6 kg 4 kg b d 8 kg 23 The mean distance between the atoms of iron is 3x10 10m and interatomic force constant for iron...
- Q During blood transfusion the needle is inserted in a vein where the gauge pressure is 2000 Pa At what height must the blood container be placed so that blood may...
- Q 16 Breaking stress of a steel wire of radius 1 mm and length 1 m is 1012 N m Breaking stress of another steel wire of radius 2 mm and...
- Q M Spring in figure A B are identical but length in A is 3 times of that in B Find the ratio of period TA to TB is Question Type...
- Q 2 A rectangular bar is fixed to a hard floor Height of the bar is h and its area in contact with the floor is A A shearing force distorts...
- Q 88 The figure shows a brake pedal lever It is pivoted at pin B An inextensible wire CE is connected to the lever The cross sectional area of the wire...
- Q wave is represented by S f x t The midpoints of a compression zone and an adjacent rarefaction zone are represented by the letter C and R Which of the...
- Q SolveLancer Test A hollow cylinder is to be punched out of a sheet of aluminum The inner radius is 1cm and outer radius is 2cm and the sheet thickness is...
- Q 10FI YA A bar is subjected to axial forces as shown If Yis the modulus of elasticity of the bar and A is its cross section area its elongation will...
- Q load of 40 kg mass is suspended from a ceiling through a steel wire of radius 2 0 mm Find the tensile stress developed in the wire when equilibrium is...
- Q A vertical glass capillary tube open at both ends contains some water Which of the following shape may be taken by water in tube 1 3 31 4 4 May...
- Q A uniform slender rod of length L cross sectional area A and Young s modulus Y is acted upon by the forces shown in the figure The elongation of the...
- Q FOL 10920511 Expansion of Ring due to Charge A ring of radius 0 1 m is made out of a thin metallic wire of area of cross section 10 6...
- Q wo conductors are made of the same material and have the same length Conductor A is a lid wire of diameter 1 m Conductor B is a hollow tube of...
- Q Thermal Properties of Matter 13 A rectangular block is heated from 0 C to 100 The percentage increase in its length is 0 2 TE percentage increase in its volume...
- Q A cuboidal block of sides a b c is fixed on ground The top is pushed by a horizontal force F as shown The angle o by which the block...
- Q A small spherical ball falling through a viscous medium of negligible density has terminal velocity v Another ball of the same mass but of radius twice that of the earlier...
- Q A 5 metre long wire is fixed to the ceiling A weight of 10 kg is hung at the lower end and is 1 metre above the floor The wire...
- Q A wire of length L and cross sectional area A made of a material of Young s modulus Y is pulled with a constant force F on a rough horizontal...
- Q The velocity of the surface layer of water in a river of depth 10 m is 5 ms The shearing stress between the surface layer and the bottom layer is...
- Q The strain stress curve of three wires of different materials are shown in the figure P Q R are the elastic limits of the wires The figure shows that V...
- Q A platform is suspended by four wires at its corners The wires are 3m long and have a diameter of 2 0mm Young s modulus for the material of the...
- Q 14 The extension produced in a wire by the application of load is 5 mm The extension in a wire of the same material and length but half the radius...
- Q 23 When metal wire elongates by hanging load on it then AV fractional change in volume is proportional to V a IAI C 2A 1 b d Al 1 AL...
- Q d 9 times of A 6 A block of mass 500 kg is suspended by wire of length 70 cm The area of cross section of wire is 10 mm...
- Q a bimetallic strip is heated it will A bend towards the metal with lower thermal expansion coefficien B bend towards the metal with higher thermal expansion coefficie C twist itself...
- Q 11 A 40 cm long wire having a mass 3 2 gm and area of cross section 1 mm is stretched between the supports 40 05 cm apart In its...
- Q The following four wires are made of the same material Which of these will have the largest extension when the same tension is applied Length 50 cm and diameter 2...
- Q a 48 45 A square plate of 0 5 m side length parallel to a second velocity of 0 5 m s both plates being plate with a immersed in...
- Q 180 A soap bubble is given a positive charge then its radius Decreases TK Tor Review Increases Remains unchanged Nothing can be predicted as information is insufficient
- Q Laminar flow takes place in a circular tube At what distance from the boundary does the local velocity equal the average velocity and a 0 29R c 0 32R er...
- Q 60 A glass slide 15 cm long 2 cm thick is suspended from the arm of a balance with its lower edge horizontal and equibalanced Now the slide is dipped...
- Q d None of the above 6 Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 75 10...
- Q d 4 T nr R 0 A space 2 5 cm wide between two large plane surfaces is filled with oil Force required to drag a very thin plate of...
- Q 9 The radii and Young s moduli of two uniform wires A and B are in the ratio 2 1 and 1 2 respectively Both wires are subjected to the...
- Q 3 A rod is fixed between two points at 50 C The coefficient of linear expansion of material of rod is 2 x 10 5 C and young s modulus...
- Q 34 Two wires of the same material and length but diameter in the ratio 1 2 are stretched by the same load The ratio of elastic potential energy per unit...
- Q 3 Young s moduli of two wires A and B are in the ratio 7 4 Wire A is 2 m long and has radius R Wire B is 1...
- Q A load of mass M kg is suspended from a steel wire of length 2 m and radius 1 0 mm in Searle s apparatus experiment The increase in length...
- Q A tank full of water has a small hole at its bottom Let t be the time taken to empty first one third of the tank and to be the...
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