Physics question and answers for May 25, 2024
- Q bomb moving in certain direction suddenly explodes into three identical pieces which fly off with equal speed Two of the three pieces o in the same direction while the third...
- Q HIS SECOUNT COndins 20 questions Caur questommas 4 upons for correct answer Munupre Choice Questions CS Only one option is correct For each question marks will be awarded as UHOWS...
- Q Two masses m and m start to move towards each 2 other due to mutual gravitational force If distance covered by m is x then the distance covered by m...
- Q Two triangular plates of surface mass density 0 and 02 are joined together to form a rhombus of side a as shown y co ordinate of centre of mass is...
- Q ABCD is a rigid square wire frame carrying a steady clockwise current i with its centre at the origin At time t 0 the frame is at rest in the...
- Q Zero Marks A cannon of mass M 200 kg is positioned a top a narrow wall as shown It fires a ball of mass m 2kg horizontally across a plane...
- Q through a gas under the action of a constant force F The gas is kept at a very low pressure The speed of the plate u is much less than...
- Q A small ball of mass m at rest is struck by a large big ball with mass M 10m with an initial speed v a Could the following occur The...
- Q A uniform cylindrical rod of length L cross section A and Young s modulus Y is acted upon by the forces as shown in figure The elongation of the rod...
- Q Example A solid sphere rolls down on inclined plane from a height h as shown in figure Calculate time taken by sphere to reach the bottom Also calculate the minimum...
- Q 12 If two balls each of mass 0 06 kg moving in opposite directions with speed 4 m s collide and rebound with same speed then impulse imparted to each...
- Q A particle of mass m moving with velocity u makes an elastic one dimensional collision with a stationary particle of mass m They are in contact for a very brief...
- Q Moment of inertia of a uniform symmetric plate as shown in figure about x axis is 1 Moment of inertia of this plate about an axis passing through centre of...
- Q 5 Two masses mi 1 kg and M2 2 kg are connected by a light inextensible string and suspended by means of a weightless pulley as shown in the figure...
- Q Jos 2 27 Total momentum of electrons in a straight wire of length L carrying a current I is P if mass of electron is doubled keeping its charge constant...
- Q 11 A rod of length L is composed of a uniform length 1 L of wood whose mass is m and a uniform 2 1 length L of brass whose...
- Q Three point masses are at the three corners of an equilateral triangle of side 50 cm The masses are m 3 kg m 2 kg and m3 5 kg You...
- Q Three forces acting on a body are shown in figure To have the resultant force only along the x direction find the magnitude of the minimum additional force in newton...
- Q Please Explain Question No 14 14 A rod AB slides on a V shaped wire with speed v as shown such that at any time OA OB I Magnetic field...
- Q Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed when the centres of the three...
- Q The centre of mass of a system of particles does not depend on 1 masses of the particles 2 Internal forces on the partices 3 position of the particles 4...
- Q The centre of mass of a system of three particles of masses 1g 2g and 3g is taken as the origin of a coordinate system The position vector of a...
- Q 5 In the figure shown the left block of mass 1 kg is struck sharply with an impulse J horizontal to the right The spring of stiffness 200 N m...
- Q A ball of mass 5 kg is suspended from a cord of length 0 5 m is attached to a cartA of mass 25 kg which slides freely on a...
- Q A uniform metal disc of radius R is taken and out of it a disc of diameter R is cut off from the end The 2 centre of mass of...
- Q 7 Four identical rods each of mass m and length I are joined to form a rigid square frame The frame lies in the xy plane with its centre at...
- Q In the Hook s law experiment and according to the relation 7 41 k used spring is having 4 m M this means that the k effective mass zero effective...
- Q 1 The probe Mangalyaan was sent recently to explore the planet Mars The inter planetary part of the trajectory is approximately a half ellipse with the Earth at the time...
- Q Appliction 6 If a uniform rod of length L is bent at the mid point so that two halves are inclined by an angle 0 with each other then the...
- Q A ball of mass m collides elastically with an identical ball at rest with some impact parameter 100 energy transfer can never take place 100 energy transfer may take place...
- Q A tennis ball with small mass m sits on the top of a basketball with large mass m The bottom of the basketball is at a height h above the...
- Q A 10 0 kg object with an initial velocity of 8 0 m s to the east collides with a stationary 4 0 kg cookie tin Just after the collision...
- Q A ball A moving with certain velocity in positive x axis collides with a stationary ball B After collision their directions of motion make angles a and 3 with the...
- Q A 4 0 kg particle like object is located at x 0 y 2 0 m a 3 0 kg particle like object is located at x 3 0 m...
- Q A cricket ball of mass m hits another stationary ball of the same mass The coefficient of restitution for the above collision is 0 6 The ratio of the velocities...
- Q A large open tank has two small holes in its vertical wall as shown in figure 7 72 One is a square hole of side L at a depth 4y...
- Q A rocket of mass 800 kg is launched from a gravity free space If rate of fuel consumption is 300 kg min and velocity of exhaust gases is 20 m...
- Q n which of the following graphs the total change in momentum is zero x F 5 b LL F 50 b 2
- Q A spacecraft can gain in mechanical energy as they encounter a planet This may appear as a violation of the conservation of energy but it is not The gained energy...
- Q A steel wire of length 2 0 m is stretched through 20 mm The cross sectional area of wire is 40 mm Calculate the elastic potential energy stored in the...
- Q The options are 1 24 kgm 2 2 12kgm 2 3 30kgm 2 36kgm 2 11 A ring has mass of 6 kg and radius of 2 What is moment...
- Q 8 A liquid of density p is coming out of a hose pipe of radius a with horizontal speed v and hits a mesh 50 of the liquid passes through...
- Q 11 15 The centre of mass of triangle shown in figure has co ordinates h 2 b 2 y y b 2 h 2 X
- Q Q No 36 A quarter sector of a uniform disc of radius R is shown in figure The coordinates of center of mass is 1 2 3 3 Cornet bopper...
- Q Two fishermen fish in the lake are sitting in a motionless boat The fishermen exchange places Mass of the boat is 280 kg mass of one fisherman is 70 kg...
- Q A yo yo shaped device mounted on a horizontal frictionless axis is used to lift a 30kg box as shown in figure The outer radius R of the device is...
- Q A 1 kg ball moving at 12 m sec collides head on with 2 kg ball moving in the opposite direction at 24 m s If the coefficient of restitution...
- Q A circular plate has a uniform thickness and has a diameter 56cm A circular dis c of diameter 56cm A circular disc of di ameter 42 cm is removed frome...
- Q The linear mass density of a thin rod of length varies with the distance x from one end as A A The position of centre of mass of rod from...
- Q 17 In the equation S a bt ct S is measured in metres and t in seconds The unit of c is A Metre B Second C Metre second D...
- Q A thin circular disc of radius R is cut into two halves One half of the disc has mass m and is shown below The moment of inertia of the...
- Q A hemisphere and a solid cone of same density have a common base The centre of mass of the common structure coincides with the centre of the common base If...
- Q 15 Four ic length 1 form a square frame Moment of inertia of this frame about an axis through the centre of the square and perpendicular to it plane is...
- Q An infinite number of bricks are placed one over the other as shown in the figure Each succeeding brick having half the length and breadth of its preceding brick and...
- Q A person holding a rifle mass of person and rifle together is 100 kg stands on a smooth surface and fires 10 shots horizontally in 5 s Each bullet has...
- Q A shell of mass 5m acted upon by no external force and initially at rest bursts into three fragments of masses m 2m and 2m respectively The first two fragments...
- Q A larger ring of mass M and two small rings of mass m start rotating with angular velocity wo from the position as shown in figure Initially small rings are...
- Q A disc of radius R is cut out from a disc of radius R2 as shown in figure If the disc left has mass M then find moment of inertia...
- Q Two balls of masses m and m are separated from each other by a powder charge placed between them The whole system is at rest on the ground Suddenly the...
- Q 44 An impulse J is applied on a ring of mass m along a line passing through its centre O The ring is placed on a rough horizontal surface The...
- Q 29 A uniform rod AB of mass m and length 1 is at rest on a smooth horizontal surface An impulse J is applied to the end B perpendicular to...
- Q 3 A souvenir is constructed by 3 light rods light strings and four objects as shown If the system is in equilibrium what is mass m3 in gm m Ans...
- Q 13 Three solid point like masses each of m 2 kg are connected by massless rods 50 cm long in a plane shown What is the moment of inertia I...
- Q 40 Pts Four communication satellites are placed in geostationary orbits at longitudes with corresponding masses in parentheses 20 4500 kg 110 5200 kg 170 4700 kg and 300 6000 kg...
- Q small disc of mass M and radius R 3 3 21 ar disc of radius R and mass 9M concentrically The moment of inertia of the remaining disc about an...
- Q 3 a 4 2 a A thin uniform flat plate is in shape of L as shown The mass of lamina is 6 kg The position of centre of mass...
- Q A crate of mass m is dropped vertically onto a conveyor belt that is moving at v m s A motor maintains the belt s constant speed The belt initially...
- Q 3 8 m 4 1 m 4 An elevator can carry a maximum load of 900 kg elevator passengers is moving up with constant speed of 2 m s 1...
- Q Two balls of equal mass of 4 kg each are moving with velocity 4 m s towards each other collides inelastically If the coefficient of restitution is 0 5 then...
- Q A rope with mass M 2 3 kg and length L 10 m is held in the position shown with one end attached to support Assume that only a negligible...
- Q A thermometer of mass m is filled with mercury of mass V m and placed in a gravity free space without touching anything As temperature rises mercury expands and ascend...
- Q Attempt All 35 questions Find wrong statement 1 Radius of gyration depends on mass of the object as well as distribution of mass 11 Radius of gyration depends only on...
- Q 1 A circular disk of moment of inertia I is rotating in a horizontal plane about its symmetry axis with a constant angular speed co Another disk of moment of...
- Q A man of mass M stands at one end of a plank of length L which lies at rest on a frictionless horizontal surface The man walks to the other...
- Q 10 The force acting on a body moving along x axis varies with the position of the particle as shown in the figure The body is in stable equilibrium at...
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