Physics question and answers for May 01, 2024
- Q A solid cylinder of radius R is projected with velocity vo on a rough horizontal surface of coefficient of friction u at t 0 and at the same instant it...
- Q 24 A wheel rotating at same angular speed undergoes constant angular retardation After revolution angular velocity reduces to half its initial value It will make revolution before stopping
- Q A solid cylinder of mass 2 kg and radius 4 cm rotating about its axis at the rate of 3 rpm Th torque required to stop after 2 revolutions is...
- Q D 4 cm sec Q 2 The angular velocity of a fan is dependent on time t as shown in figure How many revolutions the fan will produce in 5...
- Q 4 In the diagram shown the weight of the rod is W and it is a uniform rod A small weight W 2 has been placed at a distance 3L...
- Q ring of mass M and radius R is tied with string at one end and is free to rotate about hinge on other end Find Tension IT a se Solution...
- Q 7 The figure shown is an overhead view of a thin uniform rod of length L and mass M rotating horizontally at angular speed about an axis passing through its...
- Q The light circular hoop of radius r carries a heavy uniform band of mass m around half the circumference and is released from rest on the incline in the upper...
- Q A cubic frame is made of 12 rods each of mass m and length l A B 1 2 3 D 4 L E H 0 Question Type Multiple Correct...
- Q The angular velocity of a body changes from 6 rad sec to 54 rad sec without applying torque but by changing moment of inertia The ratio of the initial radius...
- Q A rigid uniform horizontal wire PQ of mass M pivoted at P carries a constant current It is made to rotates with a constant angular speed on a horizontal circular...
- Q 31 A cylinder is released from rest from the top of an incline of inclination 0 and length I If the cylinder rolls without slipping then what will be its...
- Q x Three uniform rods each of mass M and length L are placed along the three axes of a cartesian co ordinate system with one end of each rod at...
- Q A large slab of mass 5 kg lies on a smooth horizontal surface with a block of mass 4 kg lying on the top of it The coefficient of friction...
- Q 5 42 A spool has a mass of 2 kg an inner radius R 3 cm and an outer radius R 5 cm the radius of gyration about the axis...
- Q Example 9 22 A solid flywheel of 20 kg mass and 120 mm radius revolves at 600 revmin With what force must a brake lining be pressed against it for...
- Q Q 3 Option 710 0 Moment of inertia of an equilateral triangular lamina ABC about the axis passing through its centre O and perpendicular to its plane is I as...
- Q A horizontally uniform rod AB of mass m and length 1 rotates freely about a stationary vertical axis 00 passing through the end A which is located exactly midway between...
- Q A particle of charge q and mass m is clamped rigidly at the circumference of a ring with mass m and radius R Initially ring is in vertical plane resting...
- Q O B 6 A light ring of radius r wearing two identical beads A and B each of mass m is hinged at its top point O in such a...
- Q A man stands in contact against the inner wall of a hollow cylindrical drum of radius R rotating about its vertical axis with some angular speed If the coefficient of...
- Q 82 y intercept 16 897 cm 4 853 Calculation of equivalent force couple at A means the calculation of R and M Solution Ans Example 4 6 A bracket is...
- Q 40 A uniform rod of length I is pivoted at point A It is struck by a horizontal force which delivers an impulse J at a distance x from point...
- Q The moment of inertia of a thin uniform rod rotating about the perpendicular axis passing through one end is I The same rod is bent into a ring and its...
- Q A composite rod of length 2L and mass 3m has half of its section made of material of uniform densityP and other half of uniform density 2p Choose the correct...
- Q rod of mass M is released from position shown in figure The surface of sphere is smooth radius of sphere is Im and accelera V3 ue to gravity is 10m...
- Q A thin uniform rod of length is released from rest from the position shown in the figure All contact surfaces are smooth If the initial angular acceleration of the rod...
- Q A crooked pulley of mass M 8kg made of a uniform disk of radius R 1 m is mis manufactured to have its hinge off its center by a distance...
- Q The densities of two solid spheres A and B of the same radii R vary with radial distance r as PA r K R and PB r K respectiv k...
- Q A uniform rod has mass m 2 kg and length 13m One end of the rod is pulled with a constant velocity of vo 34 m s along frictionless horizontal...
- Q Consider a conical pendulum in which a small sphere of mass m revolves in uniform circular motion in horizontal plane as shown in figure Identify the incorrect option Suwww AY...
- Q Three point masses each of mass 2 kg are placed at the corners of an equilateral triangle of side 3m Then the moment of inertia of th system about an...
- Q This section contains 20 questions Each question has 4 options for correct answer Multiple Choice Questions MCQs Only one option is correct For each question marks will be awarded as...
- Q Negative Marks 1 If wrong option is selected Nine point mass m are arranged in an double cone system as shown in diagram Radius of each cone is R and...
- Q A uniform body of mass M of radius R has a small mass m attached at edge as shown in the figure M A m The system is placed on...
- Q A Rotating Tilted Rod Figure shows a thin uniform rod AB of mass m and length rotating about the vertical axis 00 at angular velocity Find the torque of centrifugal...
- Q A disc is given an initial angular velocity and placed on rough horizontal surface as shown The quantities which will not depend on the coefficient of friction is are A...
- Q 1 a Three objects a solid cylinder a solid sphere and a hollow sphere all have the same mass of 3 2 kg and radius of 15 cm rotating about...
- Q SV A solid uniform ball of mass m and radius R collides elastically with a rough fixed inclined surface as shown Velocity and angular velocity of ball just before collision...
- Q c A particle of mass 2 00 kg located at position 7 2 3 2k m with respect to the axis passing through the origin experiences a force of F...
- Q An uniform rod of length L cross sectional area A and Young s modulus Y has negligible self weight One end of the rod is hinged and a particle of...
- Q A ring a solid sphere and a thin disc of different masses rotate with same rotational KE Equal torques are applied to stop them Which one will make least number...
- Q 2 Two equal and opposite forces are appl tangentially to a uniform disc of mass M and radius R as shown in the figure If the disc is pivoted at...
- Q A disc of mass 2 kg is rotating with angular velocity 30 rev 1 2 kg 30 rev sec tra m qu sec What is angular velocity if a mass...
- Q Read the paragraph carefully and answer the following questions In a gravity free space a hollow cylinder of radius 4R and mass M is being rotated by a constant angular...
- Q A wheel of radius 20 cm has forces applied to it as shown in the figure The net torque produced by the forces 4N at A 8N at B 6N...
- Q A uniform thin rod ABC of mass M and length is placed vertically on a rough horizontal surface The coefficient of kinetic friction between the rod and the surface is...
- Q A uniform rod of mass M and length 1 is dropped on horizontal smooth surface from the position shown What is the velocity in m s of centre of mass...
- Q Consider a uniform rod of mass M 4m and length pivoted about its centre A mass mi moving with velocity v making angle to T 4 the rod s long...
- Q A small ball is kept inside a smooth tube of length L 2 m at r and then the Tube is rotated in horizontal plane with constant angular speed 3...
- Q Consider a uniform circular disc M R having a point mass M at its circumference Disc is rolling over a rough horizontal surface consider the arrangement shown in the position...
- Q 10 A uniform rod AB of mass m and length l is at rest on a smooth horizontal surface An impulse P is applied to the end B The time...
- Q The axle of a uniform cylinder with mass m and radius R is connected to a spring with spring constant k as shown in the Fig A horizontal board with...
- Q Four thin rods each of same mass M and same length form a square as shown in figure Radius of gyration of this system about an axis through centre O...
- Q The sphere shown in figure lies on a rough plane when a particle of mass m traveling at a speed vo collides and sticks with it If the line of...
- Q A solid cylinder mass m radius r a hollow cylinder mass m radius 2r a solid sphere mass m radius 3r and a hollow sphere mass m radius 4r are...
- Q Two identical rigid rods each of mass 1kg length 3m are moving opposite to each other without rotation on a smooth horizontal table as shown For what maximum value of...
- Q If the centre of gravity of a metre scale of mass 80 g lies at the 45 cm mark then which one of the following diagrams will show the balanced...
- Q A th triangular sheet of mass M has sides AB BC L What is its moment of inertia about axis AC lying in plane of sheet 1 ML B 2...
- Q Three uniform thin rods each of mass 1 kg and length 3 m are placed along three co ordinate axes with one end at the origin The moment of inertia...
- Q 1 o tan 0 4 40 tan 0 1 2440 tan 0 A small mass slides down an inclined plane of inclination the horizontal the coefficient of friction is ox...
- Q A uniform pole is attached to a vertical wall by a frictionless pivot The pole is held horizontal by a vertical mass less cable attached to the ceiling as shown...
- Q A uniform wire is bent in form as shown in the figure It is suspended from the point from where curved portion starts curved portion is semicircular Find value of...
- Q A horizontal groove AB is made inside a uniform circular disk m R hinged at its topmost point in vertical plane as shown An insect of mass m starts its...
- Q A rod of length 2L is inclined at an angle 8 to the horizontal It falls without rotating from a certain height H It hits a horizontal table surface initially...
- Q Two circular plates of radius 0 1 m are used to form a parallel plate capacitor If displacement current between the plates is 2n amp then find magnetic field produced...
- Q on a plane horizontal mirror with constant angular velocity as shown in figure P is contact point and line PQ makes an angle with vertical at given instant The velocity...
- Q 8 The moment of inertia of a uniform solid disc of mass M and radius R about an axis normal to the disk and passing through its center is MR...
- Q A force F 10N is act at the upper end of a solid sphere mass of the sphere is m 5kg and its radius is 1m then I find transational...
- Q A horizontal square platform of mass m and side a is free to rotate about a vertical axis passing through its centre O The platform is stationary and a person...
- Q 5 A particle of mass m is suspended from point O and undergoes circular motion in horizontal plane as conical pendulum as shown in figure www on C A Angular...
- Q A small particle of mass m is attached at B to a hoop of mass m and radius r whole system is placed on the rough horizontal ground The system...
- Q Three point masses each of mass m are placed at the corners of an equilateral triangle of side 1 Then the moment of inertia of this system about an axis...
- Q g is uniform rod of length 200 cm and mass balanced on a wedge placed at 40 cm mark A mass of 2 kg is suspended from the rod at...
- Q Create a bucket by rotating around the y axis the curve y 3 ln z 3 from y 0 to y 7 If this bucket contains a liquid with density...
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