Physics question and answers for June 11, 2024
- Q The chain is released see figure What is the speed when it slips by length TI 2 xxxxx 7 x 3M v BMxgx L x 30g x 34 4x84 1...
- Q A large number of small beads of unit mass each are strung at equal unit distances on a long horizontal wire The beads are initially at rest but can move...
- Q One mole of an ideal monatomic gas is t from A to C along the path ABC temperature of the gas at A is To For the pro ABC 2P...
- Q Q2 Find the work done to displace a 5 kg body from 7 2 5 to 4 9 10 under a constant I force F 4i j 3k N containing...
- Q 20 If g is the acceleration due to gravity on earth s surface the gain in P E of an obje mass m raised from the surface of the earth...
- Q A molecule of a substance has electric dipole moment of magnitude 10 2 C m A mole of this substance is polarised by applying strong electric field of magnitudes 107...
- Q A small ball of mass 100 g is attached to a light and inextensible string of length 50 cm The string is tied to a support O and the mass...
- Q Water falls from a height of 60 m at the rate of 15 kg e to operate a turbine The losses due to frictional force are 10 of the input...
- Q 1 A ball of mass 0 50 kg is rolling across a table top with a speed of 5 0 m s When the ball reaches the edge of the...
- Q or the circuit shown in figure 10 50 D 4A D 7A 20 28 V 40 202 40
- Q Two masses m and m at an infinite distance from each other are initially at rest start interacting gravitationally The relative velocity of approach when they are at distance r...
- Q Column Il gives certain systems undergoing a process Column I suggests changes in some of the parameters related to the system Match the statements in Column I to the appropriate...
- Q The system shown in figure is released from rest with spring at natural length The spring starts extending as soon as it is released if Neglect friction and masses of...
- Q Ideal pulley is pulled by force F upwards If 3 kg moves with constant velocity choose CORRECT statement s A Tension in string is 30 N C Force F is...
- Q 2 20P After the collision is masses stick each other There is a spring with force constant k between mass B and C no friction between ground and masses a...
- Q The two same uniform round rigid body are released from rest from the position shown such that it is just able to loop without leaving contact with the track Assuming...
- Q When we neglected air resistance then potential energy is converted into kinetic energy so it is conservative otherwise when we considered air then potential energy is converted into kinetic energy...
- Q Two transparent elevator cars A and B are moving in front of each other Car A is moving up and retarding at a while car B is moving down and...
- Q A vertical spring of constant k is kept fixed on a horizontal ground A block of mass 1 kg is kept at the top of the spring and gently released...
- Q A bullet of mass m moving vertically upwards instantaneously with a velocity u hits the hanging block of mass m and gets embedded in it as shown in the figure...
- Q A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts In a closed circulation system as shown schematically in the figure the...
- Q A block of mass m is kept on a rough horizontal surface with coefficient of friction The block is attached with the vertical wall through a spring of spring constant...
- Q A block of mass m is suspended by a light thread from an elevator The elevator is accelerating upward with uniform acceleration a The work done by tension on the...
- Q A ball is thrown vertically downwards with velocity 2gh from a height h After colliding with the ground it just reaches the starting point Coefficient of restitution is A 1...
- Q A rigid body of mass m is moving in a circle of radius r with a constant speed v The force on the body is my and is directed towards...
- Q A block of mass m is connected with three spring of spring constant 5K 2K and 3K as shown in figure If the block is slightly displaced then the ratio...
- Q ves on a circular track of ed u The work done by ompletes one circle is NCERT Pg 116 2 Zero m and it rebounds to a age loss of...
- Q Q3 A U tube contains water and methylated spirit separated by mercury The mercury columns in the two arms are at the same level with 10 cm of water in...
- Q 3 15 J 4 5 J When a mass of 2 kg is suspended slowly by a spring with its upper end fixed to the ceiling the spring stretches by...
- Q The potential energy of a particle of mass 1 kg in motion along the x axis is given by U 4 1 cos2x J where x is in metres The...
- Q A block of mass M is connected to a string and rotated with uniform angular speed on a circular track of radius R in the horizontal plane with coefficient of...
- Q Pls answer without formula And full explain by without using any formula pls A ball is dropped from a height of 10 m hits the ground If coefficient of restitution...
- Q A particle of mass m is attached at one end of a mass less rod and whirled round a verticle circle To complete the circular path the minimum speed given...
- Q MOMENTUM CONSERVATION A particle of mass m is moving with a velocity v another particle of mass my is moving with a velo v Both of them have the same...
- Q Two objects of the same mass fall from the same height of two smooth fixed inclined plan with different angles When they reach the bottom they should have the same...
- Q wheels is g 10 ms 2 K17500 N 2 6500 N 4 1800 N 3 9500 N 16 A ring circular of radius 2 m has mass 100 kg It...
- Q Full se quonia The chain is released see figure What is the speed when it slips by length TA ist L 2 M L 2
- Q Very high table 3 heeeeeee Spring at its natural length Block is released from rest After the above displayed event consider the following two columns List l List II 1...
- Q The blades of wind mill sweep out a circle of area A 2 m The wind is flowing at velocity v 6 m s 1 perpendicular to circle the density...
- Q questo The chain is released see figure What is the speed when it slips by length 4 3gL V16 L 2 M L 2
- Q 1 6 m 3 12 m 25m 4 10 m Raindrop is falling downwards downwards under influence of gravity and opposing resistive force Consider a drop of mass 5 00...
- Q At a certain point the potential and kinetic energies of a body of mass 4 kg projected vertically up are 200 J 600 J respectively The maximum height reached by...
- Q What if the amplifiers were connected in parallel What will be the answer then current une base resistance is I KS2 7 10 10 Two amplifiers are connected one after...
- Q SECTION A A particle of mass m is attached at one end of a mass less rod and whirled round a verticle circle To complete the circular path the minimum...
- Q A vertical spring with force constant K is fixed on a table A ball of mass m at a height h above the free upper end of the spring falls...
- Q Attempt All 35 questions When a mass of 2 kg is suspended slowly by a spring with its upper end fixed to the ceiling the spring stretches by 1 cm...
- Q 12 EXPLAIN CONCEPT how to solve when HIGHER POWER S OF X are INVOLVED how to find STABLE OR NEUTRAL ju tify in this answer 34 A particle is acted...
- Q Q No 1 Marks 4 00 1 00 View In English A position dependent force F acting on a particle and its force position curve is shown in the figure...
- Q 3 A current of 11 Amps 240 Volts flows through an electric range If it is used an average of 1 hour day a Calculate the watts used by the...
- Q Two blocks of masses 1 kg and 2 kg are connected with an ideal spring of constant K N m and placed at rest on smooth horizontal surface If they...
- Q reaches 1 2 which begins at height h A small block slides along a path that is without friction until the block reaches the section L 3m 3m on a...
- Q 4 Graph represents potential energy U versus position X of a particle moving under a conservative fore Which of the following is correct U N 1 Equilibrium position will be...
- Q Consider the set up shown below in the figure The block A is attached to a rigid wall through a spring of spring constant k 10 N m The system...
- Q 3 75 A 20 kg block is originally at rest on a horizontal surface for which the coefficient of friction is 0 6 If a horizontal force F is applied...
- Q C 3 54 In figure 3 127 a and 3 127 b AC DG and GF are fixed inclined planes BC EF x and AB DF y A small block...
- Q 3 40 An engineer is designing a spring to be placed at the bottom of an elevator shaft if the elevator cable should break at a height h above the...
- Q A 400 W computer including the monitor is turned on for 8 0 hours per day If electricity costs 104 per kWH how much does it cost to run the...
- Q The work done by a force on a body is said to be zero when 1 No force is applied 2 The body is displaced in a direction opposite to...
- Q Work is said to be done by a force 1 if the body has displacement 2 if the magnitude of the force is not equal to zero 3 if the...
- Q A pendulum bob of mass M is raised to a height h and then released At the bottom of its swing it picks up a mass m To what height...
- Q 2 Two balls of equal masses undergo a head on colli sion with speeds 6 m s moving in opposite direc tion If the coefficient of restitution is 0 5...
- Q The curve between potential energy of a diatomic molecule is shown in the figure If FA FB F FD and FE are forces of interaction between atoms of molecules corresponding...
- Q A smooth tunnel is dug along the radius of the Earth that ends at the centre A ball is released from the surface of Earth along the tunnel If the...
- Q A block of mass m is lowered slowly from the natural length position of a massless spring by an external agent to equilibrium position The extension produced in the spring...
- Q A 4 kg block is stacked on top of a long 12 kg block which is accelerating along a smooth horizontal table at a 5 2 m s under application...
- Q An all electric car is designed to run from a bank of 12 0 V batteries with total energy storage of 2 00 x 107 J If the electric motor...
- Q There is a soap bubble of radius 2 4 10 m in air cylinder which is originally at the presure of P 10 Nm The air in the cylinder is...
- Q Question 13 A spherical bubble inside water has radius R Take the pressure inside the bubble and the water pressure to be po The bubble now gets compressed radially in...
- Q A source which can be represented by a voltage source of 8 V rms in series with an internal resistance of 2 k2 is connected to a 50 22 load...
- Q nswer A kg and radius R 30 cm is hinged at the point A of a stationary surface with the line joining point A to the centre C of the...
- Q QIn Figure a thin horizontal bar AB of negligible weight and length L is hinged to a vertical wall at A and supported at B by a thin wire BC...
- Q solid sphere is in pure rolling motion In rolling motion a body possesses translational kinetic energy K as well as rotational kinetic energy K simultaneously The ratio of K and...
- Q 29 A block is released from rest from point A on a smooth track whose cross section in the vertical plane is quarter of a circle of radius R The...
- Q Two particles P and Q start from rest and move for equal time on a straight line Particle P has an acceleration of Xm s2 for the first half of...
- Q ing the velocity of sound is 320 m s C Two swimmers start a race One who reaches the point C first on the other bank wins the race A...
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