Recently Active Physics Questions

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A cylindrical solid of mass 10-2 kg and cross sectional area 10-4 m2 ismoving parallel to its axis (the x- axis) with a uniform speed of 103 m/s in the +ve direcn . At t=0 , its front face passes the plane x = 0 . The region ...

1)A particle moves perpendicularly towards a plane mirror with constant speed of 4cm/s. What is the speed of the image observed by a observer moving with 2cm/s along the same direction? Mirror is also moving with a speed of 1 ...

1.Consider a circle of radius R.A point charge lies at a distance a from its centre and on its axis such that R=a 3 .If electric field passing through the circle is ∂, find the magnitude of the charge. ...

why moving charges create magnetic field please answer it soon explain at atomic level ...

1)Why the speed of the image on an object moving with constant speed increases as it moves nearer and nearer to a stationary mirror? 2)How to make use of sign convention in ray optics while solving numericals? ...

The potential energy of a force field is given by U(x,y) = sin(x+y) . The force acting on the particle of mass m at (0,pi/4) is: (A) 1 (B) root 2 (C) 1/root 2 (D) zero i m usin F = -dU/dr .............but after that what shud ...

Let V and E denote Gravitational Potential and Gravitational field at a point. Is it possible to have V=0 but E≠0 ? ...

*Image* An circular Iron rod of radius r is put into an inverted cone which rotates with an angular velocity 'w'. If the mass of the ring me M find the tension in the the Iron rod if it rotates with the the cone without slidi ...

a ball is thrown upwards from the surface of earth . while the ball is moving up, (a) the earth remains stationary while the ball moves upwards (b) the ball remains remain stationary while the earth moves downwards (c) the ba ...

A rod of mass m, length l is hinged at a distance x from the top.A force F is apllied at the bottom.Find x such that hinge reaction is 0. ...

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A particle of mass 2gm is resting at the origin.A constant force at t=0 produces an acceleration of 2m/s2 .The line of motion of the particle makes an angle of 300with the x-axis.The work done by the force in the time interva ...

well first of all a short introduction to this man.... Ravish Bhaiya is the new physics teacher in Edudigm....in my life i have never seen a person with such a great command over the subject as him... one question he gave to ...

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Two men A and B of masses M and M+m respectively start simultaneously from the ground and climb with uniform acceleration up the free ends of massless inextensible rope which passes over a smooth pulley at a height h from the ...

As the position of an object reflected in a concave spherical mirror of 0.25 m focal length is varied the position of the image varies. Plot the image distance as a function of object distance letting the latter change from 0 ...

A ball swings in a vertical circle at the end of a rope 1.5 m long. when the ball is 36.9° past the lowest point on its way up, its total acceleration is =( -22.5 i + 20.2 j).at that instant find the magnitude of radial acce ...

looks like i am a genius in finding errors two silts are sep by 0.32mm .A beam of 500nm strinkes the solts producing an interference pattern . Determine the interference pattern between angular range -30egreees<0<30degr ...

What is the pressure at the bottom of a capillary tube dipped in a liquid? is it hρg + 2T/R or hρg - 2T/R? One more thing, this 2T/R is the excess pressure due to what?? at the bottom there is no bubble or droplet. What abo ...

a cylinder of length L made of copper has resistivity kc having radius r . it is nickel plated till its radius becomes R . the resistivity of nickel plate is kn . find the conductance of nickled plate??? ...

A bead can slide on a smooth straight wire and particle of mass m is attached to the bead by a light string of length L. The particle is held in contact with the wire with the string taut and is then let fall. If the bead has ...

1.. Two particles are thrown from a certain height along horizontal direction mutually opposite to each other with velocities v1 and v2.find the distance b/w the particles when their velocity vector becomes mutually perpendic ...

1) The time period of a particle in SHM is equal to the smallest time between the particle acquiring a particular velocity v. The value of v is (a) vmax (b) 0 (c) between 0 and vmax (i think this value can be anything) 2) Two ...

!. A spherical ball of mass m is kept at the highest pt. in the space b/w 2 fixed , concentric spheres A and B ( see fig. ) . The smaller sphere A has a radius R and the space b/w 2 spheres has a width d. The ball has a diame ...

a dipole is placed with its two ends having charges q and -q 2L distance apart . An ant having charge +Q on his body moves fom infinity to a point r distance apart from dipole along dipole equatorial line . wt is the work don ...

1.. 2 boats A and B move away from buoy anchored @ the middle of the river along mutually perpendicular straight lines,the boat A along the river and the boat B across the river. Having moved off an equal distance from the bu ...