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Electromagnetism
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Electrostatics-10 Important basic MCQs (Quiz) Part 3

Electrostatics-10 Important basic MCQs (Quiz) Part 3 Download Answer Key 1. A solid conducting sphere of radius a has a net positive charge 2Q. A conducting spherical shell of inner radius and outer radius c is concentric with the solid sphere and has a net charge – Q. The surface

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Electrostatics-10 Important basic MCQs (Quiz) Part 2
Electromagnetism
PCM TUTORIALS

Electrostatics-10 Important basic MCQs (Quiz) Part 2

Electrostatics-10 Important basic MCQs (Quiz) Part 2   Download Answer Key 1.ABC is a right angled triangle in which AB= 3 cm  and BC = 4cm  . And . The three charges +15, +12    and  -20 e.s.u. are placed respectively on  A, B  and C . The force acting

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Electrostatics-10 Important basic MCQs (Quiz) Part 1
Electromagnetism
PCM TUTORIALS

Electrostatics-10 Important basic MCQs (Quiz) Part 1

Electrostatics-10 Important basic MCQs (Quiz) Part 1 Download Answer Key 1.An isolated solid metallic sphere is given charge +Q.  The charge will be distributed on the sphere         (A) Uniformly but only on surface (B) Only on surface but non-uniformly (C) Uniformly inside the volume (D) Non-uniformly inside the volume

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Additional velocity
Mechanics
PCM TUTORIALS

A spaceship is launched into a circular orbit close to the earth’s surface. What additional velocity has now to be imparted to the spaceship in the orbit to overcome the gravitational pull.

Additional Velocity Required to Overcome Earth’s Gravitational Pull for Satellite Escape Escape velocity is the minimum velocity an object must attain to break free from the gravitational attraction of a massive body without further propulsion. For an object on the surface of the Earth, this velocity is approximately 11.2 kilometers

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Mechanics
PCM TUTORIALS

Kepler’s law of period

Kepler’s law of period Kepler’s law of period for planetary motion According to Kepler’s laws  of period for planetary motion, the square of the period of revolution of as planet around the sun is directly proportional to the cube of the semi-major axis of its orbit. Mathematically, it can be

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head on collision in mechanics
Mechanics
PCM TUTORIALS

A ball of mass m moving at a sped v makes a head on collision with an identical ball at rest. If the kinetic energy of the balls after collision is \frac34th of the original. Then the coefficient of restitution is

Head on collision : Important case of partial elastic collision Q.A ball of mass m moving at a speed v makes a head on collision with an identical ball at rest. If the kinetic energy of the balls after collision is of the original. Then the coefficient of restitution is

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static friction to move two blocks together for IIT-JEE and NEET
Mechanics
PCM TUTORIALS

For given system of two blocks, find the maximum value of force F which can be applied on the system as shown in figure so that both blocks move together. [Given coefficient of static friction between both blocks = 0.3]

How Static Friction helps two blocks to move together ! Q.For given system of two blocks, find the maximum value of force F which can be applied on the system as shown in figure so that both blocks move together. [Given coefficient of static friction between both blocks = 0.3]

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Rolling of a solid disc on horizontal and its K.E. energies Mechanics 10 Important Problems for IIT-JEE and NEET
Mechanics
PCM TUTORIALS

A solid disc is rolling without slipping on a horizontal ground as shown in figure. Its total kinetic energy is 150 J . What are its translational and rotational kinetic energies respectively?

Rolling of a solid disc on horizontal Rolling , specifically a pure rolling a classic example of combined translational and rotational motion. While talking the rolling of a  solid disc over horizontal ground, actually we discuss a simple case of rolling. Pure rolling refers rolling without slipping. Thus, there is

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Count of Beats : How to determine the frequency of Unknown Tuning Fork
Blog
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Count of Beats: How to determine the frequency of Unknown Tuning Fork

Count of Beats : How to determine the frequency of Unknown Tuning Fork Beats is a popular word among musician. Using beats formation concept, they tune their instruments while playing them against some standard frequency. All instruments come into tune when beats disappear. Now the instruments sound with same standard frequency

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Mechanics
PCM TUTORIALS

10 Important Problems for IIT-JEE and NEET

10 Important Problems for IIT-JEE and NEET Problems 1 of “10 Important Problems for IIT-JEE and NEET” Q1.A solid disc is rolling without slipping on a horizontal ground as shown in figure. Its total kinetic energy is 150 J . Its translational and rotational kinetic energies respectively are (A) 50

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