Physics question and answers for June 09, 2024
- Q 36 A body of mass mis tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity The elongation in the spring...
- Q A sphere of mass m makes SHM in a hemispherical bowl ABC and it moves from 4 to C and back to A via ABC so that PB h If...
- Q The hysteresis loss for a specimen of iron weighing 12 kg is 250 J m cycle 1 The density of iron is 7500 kg m 3 The energy loss at...
- Q 65 Calculate power generated by tension in the string in first 2 seconds of motion Jaz 1 250 W 2 P F V 10 2 500 W 3 750 W...
- Q For the system shown in figure both particles has equal mass 5 kg and charge 100uC The spring is in its natural length and has a spring constant 10 N...
- Q 2 A hammer with a head of mass M is to be used to drive nails horizontally into a wall A force of Frequired to penetrate the wall Each blow...
- Q A particle of mass m initially at rest is acted upon by a variable force f varying with time t It begins to move with a velocity u after the...
- Q A pump is used to deliver water at a certain rate from a given pipe To obtain n times water from the same pipe in the same time by what...
- Q Two rings of same mass and radius R are placed with their planes perpendicular to each other and centres at a common point The radius of gyration of the system...
- Q A particle of mass m moves on a straight line with its velocity varying with the distance travelled If the relation between velocity and distance is v Kx K is...
- Q 6 14 A smooth tunnel is dug along the radius of earth that ends at centre A ball is released from the surface of earth along tunnel Coefficient of restitution...
- Q An object does 50 J of work Which of following statements is a correct description of what happens to the energy of the object afterwards Select one O a Its...
- Q In a hydroelectric plant the available head is 80 m for a discharge 12m sec and overall efficiency of the Power Station of 80 The specific weight of water is...
- Q a At a certain instant a particle like object is acted on by a force F 3 30 N 7 2 00 N 6 40 N while the object s...
- Q A particle travelling horizontally with speed u collides and sticks with a particle having double its mass hanging vertically at rest at the end of light inextensible string of length...
- Q In the figure shown below masses of blocks A and B are 3kg and 6kg respectively The force constants of springs S and S are 160N m and 40N m...
- Q A source of sound emits 400 W power which is uniformly distributed over a sphere of 10 m radius What is the loudness of sound on the surface of a...
- Q Two blocks A and B of mass 2kg and 1kg respectively are kept on a frictionless horizontal surface They are connecte by a massless spring of spring constant 100 N...
- Q A particle A suffers an oblique elastic collision with a particle B that is at rest initially If their masse the same then after the collision A they will move...
- Q 27 The force required to stretch a spring varies with the distance as shown in the figure If the experiment is performed with the above spring of half the length...
- Q The potential energy of a particle of mass m 4kg in a conservative force field can be expressed as U 3x 4y where x y denote the position coordinates of...
- Q A particle of mass 1 5 kg moves along x axis in a conservative force field Its 2x 9x 12x where all quantities are written in SI units The plot...
- Q pushed by a 30 N force Find work done by contact force between 8 kg 2 kg block o the 2 kg block 30 N during first 4 seconds a...
- Q Sing A large block of wood of mass M 5 99 kg is hanging from two long massless cords A bullet of mass m 10 g is fired into the...
- Q A large block of wood of mass M 5 99 kg is hanging from two long massless cords A bullet of mass m 10 g is fired into the block...
- Q 3 Internal forces can change a the linear momentum but not the kinetic energy b the kinetic energy but not the linear momentum c linear momentum as well as kinetic...
- Q The positively charged particles X and Y are initially far away from each other and at rest X begins to move towards Y with some initial velocity The total momentum...
- Q A hand generator is attached to a motor and the hand crank is turned Which answer best describes the conversions of energy in this process a Electric energy is converted...
- Q 2 A small sphere of radius r falls from rest in a viscous fluid As a result heat is produced due to viscous force The rate of production of heat...
- Q Q1 A small train game moves in a straight line If the force applied is 20 N as shown in the fig and the work done which lead to move...
- Q 8 With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from a height h so that it may reach the top of...
- Q Which of the following is always true of an object whenever work is done on the object A The object moves B The object accelerates OC The forces acting upon...
- Q small object of uniform density rolls up a curved surface with an initial velocity v It reach 3v to a maximum height of with respect to the initial position The...
- Q A block of mass m is released at rest from a point P of a rough circular path of radius r as show in the figure There is a spring...
- Q 3 A stationary body explodes into two fragments each of rest mass 1 0 kg that move apart at speeds of 0 6c relative to the original body Find the...
- Q S Testy body of mass m starting from rest from origin moves along x axis with constant power P Calculate relation between velocity distance 1 x x 1 2 2...
- Q A block of mass 2kg is placed on a s mooth horizontal surface Two forces F1 20N and F2 5N start acting on th e block in opposite directions as...
- Q 15 A force F 6i 8j N acts on a particle and displaces it over 4 m along the X axis and then displaces it over 6 m along the...
- Q C 17 A force acts on a body and displaces it in its direction The graph shows the relation between the force and displacement the work done by the force...
- Q d 12 J 14 A rain drop of mass 1 10 gram falls vertically a constant speed under the influence of the forces o gravity and viscous drag In falling...
- Q 23 A system consists of two cubes of masses my and m2 respectively connected by a spring of force constant k The force F that should be applied to the...
- Q 24 A block of mass m 2 kg is moving with velocity vo towards a massless unstretched spring of force constant k 10 N m Coefficient of friction between 1...
- Q A block given a velocity u on horizontal ground not frictionless is observed a distance s away a time 7 later Find coefficient of kinetic friction between the floor and...
- Q 30 In the figure the variation of components of acceleration of a particle of mass 1 kg is shown with respect to time The initial velocity of the particle is...
- Q 1 2 2 3 3 4 4 525 23 A ball moving with a velocity v hits a massive wall moving towards the ball with a velocity v An elastic...
- Q are 36 Three components of a force acting on a particle varying according to the graphs as shown To reach at point B 8 20 0 m from point A...
- Q e A simple pendulum has a mass 3 4 kg and a length 2 35 meters If the mass is released from rest at an angle 62 8 degrees how...
- Q 31 A block attached to a spring pulled by a const horizontal force is kept on a smooth surface as shown in the figure Initially the spring is in the...
- Q 29 In the figure a block slides along a track from one level higher level by moving through an intermediate valley The track is frictionless untill the block reaches the...
- Q 2 A 10 gm bullet is fired into a 990 gm black rest on a horizontal frictionless surface The block with the bullet embedded in it slides up an inclined...
- Q Two electrical bulbs marked 40 W 220 V and 60 W 220V when connected in series across same voltage supply of 220 V the effective power is P and when...
- Q rrect answer Type Questions A constant force F acts on a moving body along a smooth quater circular arc of radius R fixed on horizontal surface Calculate the work done...
- Q Answer the following questions orally 1 If we press a sheaf of paper very hard with our thumb it may crease a bit but otherwise we do not see any...
- Q 0 A particle is thrown up vertically with a speed in air It takes time t in upward journey and t t in the downward journey and returns to the...
- Q 41 A block of mass M moving with a velocity vo on a horizontal table strikes a spring of spring constant k at t 0 and begins to experience a...
- Q k 32 A man is supplying a constant power of 500 J s to massless string by pulling it at a constant speed of 10 m s as shown It...
- Q 2 Assertion The work done by the radial force acting on a particle when doing uniform circular motion is zero Reason No work is done by a force if force...
- Q c 10 kg 33 In the figure shown all the surfaces are frictionless and mass of the block m 1 kg The block and wedge are held initially at rest...
- Q Incline planes P Q are smooth but plane surface from A to B is rough Find number of times block of mass 2 kg will climb on Q If released...
- Q 10 A block is released from the top of two inclined rough surfaces of height h each The angle of inclination of the two planes are 30 and 60 respectively...
- Q 5 A cyclic process is shown in the figure Work the cyclic process ABCDA A 2 10 10 a 150 J b 163 J D C B 2 3 V...
- Q 9 A vertical spring of force constant 100 N m is attached with a hanging mass of 10 kg Now an external force is applied on the mass so that...
- Q 5 A body is displaced from 0 0 to 1m 1m along the path x y by a force F x j yi N The work done by this force...
- Q A particle of mass 4 kg is at rest at position A 2 3 If it is moved to point B 3 5 by applying a constant force F 41...
- Q 3 A particle falls from rest under gravity Its potential energy PE with respect to ground and its kinetic energy KE are plotted with time t Choose the correct graph...
- Q 2 A stone of mass 10 g is dropped from the top of a tower of height 1 km It falls under gravity in presence of air resistance Air resistance...
- Q By applying a force F 3xy 5z j 4zk particle is moved along the path y x where all quantities are in SI units from point 0 0 0 m...
- Q 1 A thin rod of length L and mass M is held vertically with one end on the floor and is allowed to fall What will be the angular velocity...
- Q A playground merry go round of radius R 1 80 m has a moment of inertia I 270 kg m and is rotating at 8 0 rev min about a...
- Q Fr where Fis a positive constant and is its distance from the origin Its energies are calculated using the Bohr model If the radius of the particle s orbit is...
- Q The position x of a particle of mass 2 kg moving along x axis at time t is given by x 2 metre Find the work done by force acting...
- Q 22 Three rods of identical cross sectional area and made from the same metal form the sides of an isosceles triangle ABC right angled at B The points A and...
- Q 6 A ball collides perfectly inelastically with smooth horizontal ground at angle 30 with vertical as shown Fraction of kinetic energy lost by the ball due to collision is T...
- Q The potential energy of a particle of mass kg free to move along x axis is given by U x X 2 xj joule If total mechanical 2 energy of...
- Q A bicyclist comes to a skidding stop in 10 m During this process the force on the bicycle due to road is 200 N and is directly opposed to motion...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!