Recently Active Physics Questions

*Image* what will be the maximum force applied m on the rope by the man of mass M standing on a block of mass m as shown so that block does not move , and pulling the rope attached to the block as shown in the arrangement.the ...

*Image* find minimum value of mass M so that 2 kg block slips over 4 kg block . please give complete solved answer. ...

Why electric lines of force ends or starts normally from the surface of a conductor??? ...

*Image* if all surfaces are frictionless, and the edge of the floor has sufficient friction for the rod to rotate about it, find the minimum distance d for the rod to topple. (length of the rod is l) i am getting d≥(l/2) pl ...

Q1.The force required to just move a body up in the inclined plane is double the force required to just prevent the body from sliding down the plane.The coefficient of friction is u. If @ is the angle of inclination then tan@ ...

those member who r selected in iit give there name and rank pls if they could ? ...

we know that the electric field of an infinite thick sheet is EF = surface charge density epsilon i have taken the gaussian surface as shown in the figure. It ends inside the thick sheet ( its embedded inside ). Alongside the ...

Subjective type: 64 drops of a liquid each of capicitance 1μF coalese, the capacitance of the new drop is________ ...

Q1. The electric field is given by the expression E=c/x3 where c is a constant. Find the potential at a point P as a function of x. i.e. find V(x) Q2. If there is a cavity in a conductor and no charge is placed in the cavity, ...

*Image* in this question y d 1V batteries r ruled out and also while calculating the current only one of 2V or 3V is considered? plz xplain,d diagonal resistance is 2 ohm ...

a strip of metal of resistance R, length l and width d, is kept in a uniform magnetic field B. it is connected to an external source of potential and a current i flows through it. find the potential difference between A and B ...

Q1.What are dielectrics??? Q2.What is meant by 'continuous charge distribution'?? ...

Q.Two small spheres each of mass 'm' kg are suspended and charge q coulomb are suspended from a point by insulating threads each of L metre length,but of negligible mass.If @ is the angle which each string makes with the vert ...

*Image* find the potential difference accross AB a.1V b.2V c.1.5V d.cant be determined ...

When a nucleus at rest emits a beta particle,it is found that the velocities of the recoiling nucleus and the beta particle are not along the straight line.How can this be possible in view of the principle of conservation of ...

how does the drift velocity of electrons in a metallic conductor change if the length of the conductor is doubled by stretching it. PD is kept constant explain ...

a particle moves in the xy plane with velocity v= ai + bxj a and b being constants. at t=0 particle was at (0,0).. find (a) the equation of the particles trajectory (b) the curvature radius as a function of x ...

A capacitor of capacitance C is charnged to a potential difference V from a cell and then disconnected. A charge +Q is now given to its +ve plate. The potential difference across the capacitor is now: (a) V (b) V+Q/C (c) V+Q/ ...

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What can be said about the CM of a uniform hemisphere without making any calculations ? Will its distance from the centre be more or less than r/2 ? ...

Velocity of CM of two particles is v & the sum of the masses of two particles is m. Kinetic energy of the system : A. will be = 1/2 mv2 B. will be always less then 1/2 mv2 C. will be greater than or equal to 1/2 mv2 D. will a ...

k of spring 200 N/m. Find max. extension of spring-- *Image* ...

Why does the charge on a parallel plate capacitor appear on the facing surfaces only? ...

In a Ramsden's Eye piece of effective focal length 3 cm the length of the eye piece is : a) 1.5 cm b) 8/3 cm c) 3 cm d) 4 cm FIRST TELL ME WATS THIS RAMSDEN EYE PIECE ...

54. Fundamental forces are thought to arise due to exchange of some mediating particles. The range of force Ro depends on mass m of mediating particle in the following way (1) Ro → m (2) R→ m (3) R→1/m (4) R→1/ m wher ...

Ball 1 collides on with another ball 2 at rest as shown in the figure. For what value of e will the velocity of the 2nd ball be twice that of 1st after collision A.1/3 B.1/2 C.1/4 D.1/6 u1 is not given.. how to do ?? *Image* ...

true or false. Adiabatic & isothermal curves start from the same point & never meet again......... ...

A and B are two metallic balls of radii 8 and 2cm respt.both are large distance apart .A is charged to 100nc and touches B and taken back and charged again to 100nc.this process is repeated completely till B reaches a steady ...

find the moment of inertia of a uniform square plate of mass "m" and edge "a"...about one of its diagonals? ...