Physics question and answers for May 22, 2024
- Q A thin metal plate is being bombarded by a perpendicular beam of gas particles from both sides The mass of these particles is m their veloc ity before striking is...
- Q Graphs a and b show the effect of carts A and B colliding separately with a standard cart S List the three carts in order of increasing mass m m...
- Q A thin uniform stick of length and mass m is held horizontally with its end B hinged on the edge of a table Point A is suddenly released The acceleration...
- Q 3 With reference to figure of a cube of edge a and mass m which of lo the following is the incorrect statement O is the centre of the cube...
- Q 26 A ball strikes a horizontal floor at an angle 0 45 The coefficient of restitution between 1 the ball and the floor is e 2 of its kinetic energy...
- Q All sides of an equilateral triangle are diameter of three identical uniform semicircular rings each of mass m Plane of each ring is perpendicular to the plane of paper Then...
- Q A projectile moving with 20 m s in horizontal direction explodes into two equal pieces One piece moves vertically down at 30 m s The speed and direction of motion...
- Q If a cylindrical container filled with mercury is rotated with an angular velocity about its vertical axis of symmetry the mercury air interface takes shape of a paraboloid of revolution...
- Q A stationary object explodes into two fragments of masses m and 2m respectively If the energy of explosion is E the KE of the centre of mass of the system...
- Q Consider a rectangular plate of dimensions a x b If the plate is considered to be made up of four a b rectangles of dimensions 22 one out of the...
- Q 13 Two point masses m and m at rest in gravity space are released from distance d Find the velocity of the CM of the system at the time of...
- Q TEACHER PRACTICE ANOTH A billiard ball moving at 5 40 m s strikes a stationary ball of the same mass After the collision the first ball moves at 4 48...
- Q c 8 75 d 8 751 3 A body of mass 4 kg is moving with momentum of 8 kg m s A force of 0 2 N acts on...
- Q A block of mass 15kg is kept at rest on a frictionless surface Another mass 5kg moving at a speed of 9m s collides with mass 15kg After the collision...
- Q 4 All of these 166 A thin uniform rod has moment of inertia about an axi parallel to its length at a certain distance If on heating its length increases...
- Q CONSERVATION OF MOMENTUM 42 Which one of the following statements is not true a The same force for the same time causes the same change in momentum for different bodies...
- Q 39 A ball of mass m strikes a rigid wall with speed u at an angle of 30 and get reflected with the same speed and at the same angle...
- Q Q21 Two blocks M and M having equal mass are free to move on a horizontal frictionless surface M is attached to a massless spring as shown in figure Initially...
- Q A uniform disc of diameter R is put over another uniform disc of radiu of same thickness and density The peripheries of these two discs tou each other The centre...
- Q lens and the object position u as shown in the figure The focal length of the lens used was 2 b ca A bullet of mass M hits a block...
- Q The wavelength of the light received from a galaxy is 0 4 greater than the wave length on the earth then the velocity of galaxy relative to the earth will...
- Q 169 2 The mass of a hydrogen molecule is 3 32 10 27 kg If 1023 hydrogen molecules strike per second a fixed wall of area 2 cm at an...
- Q 42 180 A disc of mass m and radius R is rolling without slipping as shown in the figure The velocity of the point P will be RIN P 0
- Q A uniform rigid square loop of mass m side 1 is free to rotate about an axis in xy plane passing through one corner as shown A constant current I...
- Q During a figure skating competition an ice skater is rotating at 2 0 rad s When the ice skater draws her arms and legs close to her torso her moment...
- Q A rotating table completes one rotation in 10 sec and its moment of inertia is 100 kg m A person of 50 kg mass stands at the centre of the...
- Q d 31 5j 3k diametric axis is 25 kg loment of inertia of a disc of radius R about a a parallel axis at a distance R 2 from the...
- Q Q 33 Two metal spheres suspended by vertical cords initially just touch as shown in Fig Sphere 1 with mass m 30g is pulled to the left to height h...
- Q Q 9 A pan of mass m 1 5 kg and a block of mass M 3 kg are connected with each other by a flexible light and inextensible string...
- Q A ball of mass 100g dropped on the ground from 5 m bounces repeatedly During every bounce 36 of kinetic energy is loss Calculate i Coefficient of restitution ii Impulse...
- Q A canon shell moving along a straight line bursts into two parts Just after the burst one part moves with momentum 20 Ns making an angle 30 with the original...
- Q Two spheres of same radi but mass 2kg and 4 kg are moving toward each other They collide with restitution coefficient e 1 3 During collision the spheres deform and...
- Q There are some passengers inside a stationary railway compartment The track is frictionless The centre of mass of the compartment itself without the passengers is C while the centre of...
- Q 2 b 0 45 kg m d 0 16 kg m 2 From a disc of radius R and mass M a circular hole of diameter R whose rim passes...
- Q A 5000 kg rocket is set for vertical firing The exhaust speed is 800 m s 1 To give an initial upward acceleration of 20 m s 2 the amount...
- Q A moving body of mass m collides head on elastically with a stationary body of mass 3 m Calculate the ratio of the momentum of the mass 3m after the...
- Q A symmetrical square lamina of mass M has uniform semi circular plates attached to it on its four sides as shown in the figure Each plate has the same mass...
- Q Calculate the moment of inertia a of a copper uniform disc relative to the symmetry axis perpendicular to the plane of the disc if its thickness is equal to b...
- Q Figure shows a uniform rod of length and mass M which is pivoted at end A such that it can rotan in a vertical plane The free end of the...
- Q et ball 1 has a mass twice that of ball 2 and ball 1 and ball 2 are located at 0 5 0 and 1 5 0 respectively a If...
- Q If a ball is rolling at a velocity of 1 5 m sec and has a momentum of 10 0 kg m sec what is the mass of the ball...
- Q Two spheres are moving as shown Velocity v is such that spheres are at minimum separation when they touch each other Then A B 3 GM 28 R 6 GM...
- Q 55 In two dimensional elastic collision which among the following are correct Momentum is always conserved of the system 2 Kinetic energy of the each particle remains same throughout 3...
- Q sr superoo All Sri Chaitanya IIT Academy Gm space 06 06 2021 Sr Super60 All Jee Adv 2018 P1 GTA 08 Q P C I then bia 2L
- Q A man of mass m walks from end A to the other end B of a boat of mass M and length 1 The coefficient of friction between man and...
- Q nelber bei 0 mol es 10 A child is standing at one end of a long trolley moving with a speed on a smooth horizontal track child starts running towards...
- Q 8 Locate the centre of mass of arrangement shown in figure The three rods are identical in mass and length jume sqerie pri no abrageb 228m 10 y axis NOU...
- Q A uniform square plat abcd has a mass of 1 kg If two point masses each of 20 g are placed at the comers b and c as shown then...
- Q A uniform disc of diameter Ris put over another uniform disc of radius R of same thickness and density The peripheries of these two discs touch each other The centre...
- Q A body of mass M in the form of an inclined plane with a 450 angle of inclination lies on a horizontal plane A ball of mass m moving horizontally...
- Q Two identical uniform rods AB and CD eac h of length L are jointed to form a T shaped frame as shown in fig Located the COM of t he...
- Q A block of mass M with the semicircular track of radius R rests on a horizontal smooth surface A cylinder of radius r slips on the track If the cylinder...
- Q A rod CD of length L and mass M is placed horizontally on a frictionless horizontal surface as shown A second identical rod AB which is also placed horizontally perpendicular...
- Q 28 A particle mass m is attached to a thin uniform rod of length a at a distance of from the mid point Cas 4 shown in the figure The...
- Q Three identical spheres each of mass 1 kg are placed touching each other with their centres on a straight line Their centre are marked P Q and R respectively The...
- Q A 0 0427 kg racquet ball is moving 22 3 m s when it strikes a stationary box The ball bounces back at 11 5 m s while the box...
- Q Three particles of mass 1kg 2kg 3kg are placed at the corners A B and C respectively of an equilater triangle ABC of edge 1m Locate the centre of mass...
- Q A man of mass m is suspended in air by holding the rope of a balloon of mass M As the man climbs up the the balloon rope M m...
- Q 51 A projectile is projected tangentially from the surface of a planet of radius R If it is at a height of 3R at the farthest point of its trajectory...
- Q 33 What is the moment of inertia of solid sphere of density p and radius R about its diameter 105 a R p 176 176 105 c R P NIS...
- Q Question No 9 Three solid spheres each of mass m and radius R are released from the position shown in fig The speed of any one sphere at the time...
- Q A disc has an angular velocity o about O The ratio of angular velocity of point P w rt A fixed to the ground and angular velocity of point Pw...
- Q A chain of length I and linear density A hangs from a horizontal support with both ends A and B fixed to a horizontal support as shown The two fixed...
- Q A massive ball moving with speed v collides with a tiny ball which is initially at rest having a mass very much smaller than the mass of the first ball...
- Q Two particles of mass 1 kg each are moving in opposite direction with speed of 6 m s and 4 m s and undergoes collision with coefficient of restitution Calculate...
- Q B C As shown in the figure D is the centre of the circular base of a right circular solid con ABC whose vertical angle is 60 If the largest...
- Q 7 From a circular disc of radius R a square is cut out with a radius as its diagonal The centre of mass of remaining portion is at a distance...
- Q Comprehension 1 One twirls a circular ring of mass M and radius R near the tip of one s finger as shown in the process the finger never loses contact...
- Q 3 4x 4 27 38 An electric fan has blades of length 30 cm as measured from the axis of rotation If the fan is rotating at 1200 r p...
- Q 5 A kg block moving with 5 m s strikes a spring 2 of force constant 1000 N m attached to another 1 2 kg block at rest Kept on...
- Q radius R No sand is to spill on to the surrounding area fls is the coefficient of static friction between sand parties then the choose the correct statement s The...
- Q Q 9 11 A uniform horizontal bar is located in a space where the strength of gravity g increases from left right Relative to the location of center of mass...
- Q 4 25 A ball of mass m moving with a velocity v undergoes an oblique elastic collision with another ball of the same mass m but at rest After the...
- Q A uniform T shaped object made of two thin rods of the same material with dimensions as shown in the figure lies on a smooth horizontal table A force F...
- Q Two identical balls B and C of same mass m are connected by a massless inextensible string and placed on a smooth horizontal surface as shown in the figure A...
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