Home
Class 12
PHYSICS
Two very small particles 1 and 2 each of...

Two very small particles `1` and `2` each of mass `0.5kg` and of charge `q_(1)=1mc` and `q_(2)=1muC` resepectivley are connected by a mass less spring of spring constant `200Nm^(-1)` and placed on a horizontal rough surface.The particle `1` is fixed and `2` is free to move ,Initially the spring is in its natural length `(2m)` where `q_(2)` is released.If coefficient of static friction between `2` and horizontal surface is `0.5` the separation between the charges when they are in equilibrium will be (Neglect gravitational interactions between `1` and `2g=10ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
2
Based on friction and Coulombus Law
`F=(9xx10^(9)xx10^(-9))/(4)=2.25N`
which is less `mumg` acting on `2` rArr final separation =2m only.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS AND GAUSS LAW

    NARAYNA|Exercise ASSERTION AND REASON|10 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NARAYNA|Exercise ADDITIONAL PROBLEMS|14 Videos

  • EXPERIMENTAL PHYSICS

    NARAYNA|Exercise Comprehension type|6 Videos

Similar Questions

Explore conceptually related problems

Two blocks of masses m_(1) =1kg and m_(2) = 2kg are connected by a spring of spring constant k = 24 N/m and placed on a frictionless horizontal surface. The block m_(1) is imparted an initial velocity v_(0) = 12cm/s to the right. The amplitude of osciallation is

Two blocks A and B of mass m and 2m respectively are connected by a light spring of force constant k. They are placed on a smooth horizontal surface. Spring is stretched by a length x and then released. Find the relative velocity of the blocks when the spring comes to its natural length

Two blocks of masses m_(1) and m_(2) are connected by a massless spring and placed on smooth surface. The spring initially stretched and released. Then :

Two uniform discs A and B of equal radii but having different masses 1 kg and 2 kg respectively, are connected (at centres) by a massless spring of spring constant k = 1000 N m^(-1) and then placed on a sufficiently rough horizontal surface. If initially, the system is released from rest with the spring being compressed by 10 cm, then the speed of A when the spring comes back to its natural length, is

Two identical particles of charge q each are connected by a massless spring of force constant k . They are placed over a smooth horizontal surface. They are released when the separation between them is r and spring is unstretched. If maximum extension of the spring is r , the value of k is (neglect gravitational effect)

Two masses m_1 and m_2 re connected by a spring of spring constnt k and are placed on as frictionless horizontal surface. Initially the spring is tretched through a distance x_0 when the system is released from rest. Find the distance moved by the tow masses before they again come to rest.

A spring, placed horizontally on a rough surface is compressed by a block of mass m, placed on the same surface so as to store maximum energy in the spring. If the coefficient of friction between the block and the surface is mu , the potential energy stored in the spring is

Two blocks m_(1) and m_(2) are connected by a spring of force constant K and are placed on a frictionless horizontal surface. Initially the spring is given extension x_(0) when the sysetem is released from rest, find the distance moved by two blocks before they again comes to rest.

A rod of mass m and length l is connected by two spring of spring constants k_(1) and k_(2) , so that it is horizontal at equilibrium. What is the natural frequency of the system?

Two block of same mass'm' are joined with an dideal spring of spring constant k and sept on a rough surface as shown in figure. The spring is initially unstretched and coefficient of friction between the blocks and horizontal surface is mu and 2 mu respectively. What should be the maximum speed of block 'A' such that the block 'B' does not move ?