Physics question and answers for May 14, 2024
- Q As we know that the weight what we feel is th e counter force but during free fall counter for ce by crust would not be in concern but count...
- Q Centre of gravity of a body on the earth coincides with its centre of mass for a small object and for a large object it may not What is qualitative...
- Q A body of mass m is raised from the surface of earth to a height equal to radius of earth R If acceleration due to gravity on the surface of...
- Q 16 Two planets revolve with same angular velocity about a star The radius of orbit of outer planet is twice the radius of orbit of the inner planet If T...
- Q 1 The resistance of an ammeter is 132 and its scale is graduated for a current upto 100 A After an additional shunt has been connected to this ammeter it...
- Q R 55 Two point masses of mass m each are released from a very large separation They start to move towards each other The kinetic energy of one mass with...
- Q The Saturn s Moon x is having the gravitational acceleration on its surface as 5 m s and the another moon x is having the 4 of the radius of...
- Q interactic betwe The potential energy arc of ring of radius R and mass m and the particle of mass m placed at centre of curvature is M 1 3 GMm...
- Q D Find the percentage decrease in the acceleration due to gravity when a body is taken from the surface of earth to a height of 64 km from its surface...
- Q Two satellites of mass m and m m m ar going around the earth in orbits of radius r and r r r Which statement about their velocities correct 1...
- Q 9 A network of four capacitors of capacity equal to C C C 2C C3 3C and C 4C are connected to a battery as shown in the figure The...
- Q Hint Use Newton s universal law of gravitation P If the distance between earth and sun is increased by 2 then find percentage cha gravitational force acting between them Hint...
- Q 44 The imaginary angular velocity of the earth for which the effective acceleration due to gravity at the AMU 2012 equator shall be zero is equal to 2 Take g...
- Q 41 A launching vehicle carrying an artificial satellite of mass m is set for launch on the surface of the earth of mass M and radius R If the satellite...
- Q An experiment is performed on a puck on a level air hockey table where friction is negligible A constant horizontal force is applied the puck and the puck s acceleration...
- Q 18 A planet has twice the mass of earth and of identical size What will surface of the planet where its acceleration due to gravity reduces by 36 of its...
- Q The diameter of sun is 1 39 x 10 m distance of sun from earth is 1 496 10 The angular diameter of sun is INCERT P k JIT JEE...
- Q 20 Find the percentage decrease in the acceleration due to gravity when a body is taken from the surface of earth to a height of 64 km from its surface...
- Q At what altitude the acceleration due to gravity reduces to half of its value as that of the earth Take radius of earth as 6 4 x 106 m g...
- Q 36 ii Reduces by 36 of its value on the surface of earth Take R 6400 km much below the surface of the earth does the acceleration due to gravity...
- Q 4 The escape velocity on earth is 11 2 kms If the onbody is projected out with twice this velocity then the speed of the body far away from the...
- Q EXAMPLE 16 Transferring the Satellite A 400 kg satellite is in a circular orbit of radius 2R about the earth How much energy is required to transfer it to a...
- Q 26 Two bodies of m and 4m are placed at a distance r The gravitational field is zero at a point on the line joining the two masses What will...
- Q 1 Earth is moving around the sun in elliptical orbit as shown The ratio of OB and OA and R Then the ratio of earth s is velocities at A...
- Q Q 28 Average density of earth a does not depend on g directly proportional to g c b d is a complex function of g inversely proportional to g
- Q For Question 21 25 two statements are given one labelled Assertion A and other Reason R Select the correct answer to these Question from the codes a b c and...
- Q Q 27 What is the gain in potential energy of an object of mass m raised from the surface of earth to a height R Acceleration due to gravity at...
- Q particle each of mass m move along a circle of radius R under the action of their mutual attraction The speed of each gravitational particle is 3 2Gm R 1...
- Q Three identical point masses each of mass 1 kg lie a three points 0 0 0 0 2 m 0 2 m 0 The ne gravitational force on the mass...
- Q photon is NCERT Pg 398 2 0 02 eV sm1 4 0 04 eV sm it rest decays into two 3m The ratio of de wwo particles will be INCERT...
- Q 108 If orbital speed of a satellite orbiting near of the earth in circular orbit is changed from V to 1 1V then it will Revolve in a circular orbit...
- Q 2 If the law of gravitation instead of being inverse square law becomes an inverse cube law then the true statement is 38 1 Circular orbits of planet is not...
- Q 134 Gravitation 105 A tunnel has been dug through a diamete solid sphere of uniform mass density Which graph best represents the variation of gravitational field intensity E with position...
- Q 12 An object of mass M is divided into two parts which are placed at distance d If gravitational force of attraction is maximum between parts then find the ratio...
- Q A hypothetical planet of mass m is moving along an elliptical path around sun of mass I under the influence of its gravitational pull If the major axis is 2R...
- Q 4 106 86 A person can jump upto a height h RE earth Radius Rp of a planet on which the man escapes through jumping can be given by Density...
- Q 56 Two point masses M and 4M are kept at a separation of 12 meter At what distance from the smaller mass The gravitational potential has a minimum magnitude 1...
- Q 38 If the gravitational acceleration at s Earth is g then increase in potential lifting an object of mass m to a heigh half of radius of earth from surface...
- Q Two electrons of mass m each orbit around a nucleus of mass 80m such that both the electrons are always at the two diametric opposite points in their single circular...
- Q 8 Two particles each of mass M are released from rest when they are at infinite separation The velocity of any one when their separation becomes r will be 1...
- Q Two spheres of mass M M are placed in gravitational force between two masses is F liquid is filled in space having specific grav around the masses the gravitational force...
- Q If the universal gravitational constant decrease uniformly with time then the path of earth aroun sun will be 1 Same as it was earlier 2 Spiral of decreasing radius 3...
- Q a Centre of gravity C G of a body is the point at which the weight of the body acts b Centre of mass coincides with the centre of gravity...
- Q 18 A Geostationary satellite is orbiting at a height of 6RE above the surface of earth The time period of another satellite at a height 2 5RE above the surface...
- Q 17 A point mass m is placed inside a spherica shell of mass M and radius R Th gravitational force experienced by the poi avile of las mass is NCERT...
- Q 12 38 Gravitation 1 A satellite revolving around earth has 2 MJ then the binding energy of the satellite is NCERT Pg 196 potential energy 1 1 MJ 2 2...
- Q 5 The potential energy of a system of four particles each of mass m placed at vertices of a square of side a is NCERT Pg 192 Gm Gm 1...
- Q 5 Three equal masses 2m each are placed at the vertices an equilateral triangle PQR What is the force acting on a mass m placed at the centroid G of...
- Q 1 What is the force acting on a mass m placed at the centroid G of the triangle What is the force on mass m if the mass at the...
- Q India s Mangalyan was sent to the Mars by launching it into a transfer orbit EOM around the sun It leaves the earth at E and meets Mars at M...
- Q From a sphere of mass M and radius R a smaller sphere of radius R 2 is carved out such that the cavity made in a original sphere is between...
- Q 9 At what height from the surface of earth the gravitation potential and the value of g are 5 4 x 10 J kg an 6 0 ms respectively Take...
- Q Try Yourself 3 The period of revolution of a satellite in an orbit of radius 2R is T What will be its period of revolution in an orbit of radius...
- Q a 67 A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F of the sphere A spherical cavity of radius R 2...
- Q A satellite with a mass of 100 kg is launched from the earth at an altitude of h 500 km with Vo 1 1 V According The launch status angle...
- Q If the gravitational force between two objects were proportional to 1 R and not as 1 R where R is the distance between them then a particle in a circular...
- Q Let the speed of the planet at the perihelion P in fig given below be vp and the Sun planet distance SP be rp Relate rp Vp to the corresponding...
- Q The depth at which the effective value of acceleration 2 due to gravity is is R radius of earth 3R 1 R R clev 2 2 Three identical mass M...
- Q Three identical mass M are placed at corner of 3 equilateral triangle of side L then calculate escape velocity given to a mass m placed at centroid at an equilateral...
- Q Physics Question Palette Question No 23 A spaceship is launched into a circular orbit close to the earth s surface What additional velocity has now to be imparted to the...
- Q A tunnel is made in earth passing through centre of earth If time taken by an object to move from one end of tunnel to other end depends on radius...
- Q 5 A satellite is revolving round the earth with 36 3448 year in f orbital speed v If it is imagined to stop suddenly the speed with which it will...
- Q An artificial satellite orbiting around the Earth does not fall down This is so because the attraction of Earth A does not exist at such distance B is neutralised by...
- Q The value of g at a particular point is 9 8 ms 2 Suppose the earth suddenly shrinks uniformly to half its present size without losing any mass The value...
- Q The gravitational potential at height h above the 22 earth s surface is 5 12 x 107 J kg and acceleration due to gravity at this point is 6 4...
- Q The escape velocity on a planet with radius 35 double that of earth and mean density equal to that of earth will be escape velocity on earth 11 2 km...
- Q Q 1 The mass density of a spherical galaxy varies K over a large distance r from its center as Y In that region a small star is in a...
- Q A 26 foot ladder is lowered down a vertical wall at a rate of 3 feet per minute The base of the ladder is sliding away from the wall At...
- Q 3 32 7 14 A projectile is fired from the surface of earth wit a velocity Kv K 1 where ve is the escap velocity from surface of earth The...
- Q A body is suspended from a spring balance kept in a satellite The reading of the balance is W when the satellite goes in an orbit of radius R and...
- Q Online Mock Test Series for NEET 2020 30 Three mole of an ideal gas is taken through the process ABC as shown in the figure The total work done by...
- Q spring at equilibrium near earth surface is xo then the extension in spring at a height 1600 km from earth surface is radius of earth R 6400 km 5x 1...
- Q Test 13 Code A 6 The magnitude of uniform magnetic field in a small region of Helmholtz coils is nearly N is number of turns in each coil 2 HONI...
- Q Halley s comet moves in an elliptical orbit about the Sun no external torque act on the system At the furthest point aphelion the comet is a distance r 5...
- Q The distance between to stars of masses M and 16M is 10a Their radii a and 2a respectively A body of mass m is fired stright from the surface of...
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