Articles in JEE 2016
Change in Orbit of a Satellite: When a satellite is orbiting around the earth in an orbit of a given radius, and for some reasons we need to shift the satellite from one orbit to another, work is required to be done in such a situation. For an analysis watch the Illustration Video below. Concept […]
From the satellite, the surface area of Earth to which signals can be sent directly is called the broadcasting region of the satellite. For a geostationary satellite, the area on earth’s surface to which it can broadcast signals will remain fixed as the satellite appears stationary with respect to earth at a fixed altitude. If a […]
Dear Readers, The Tripura Joint Entrance Examinations Board has invited applications for the Tripura JEE 2016 for admission to Engineering Degree Colleges, Medical Colleges, and other professional degree courses. The last date of application for the Tripura JEE, 2016 is 25.01.2016. To avoid any last minute delays and confusion, make sure you complete the application […]
Communication Satellites: These are used in broadcasting of information over the Earth surface at various regions. For a given satellite, if we draw the tangential conical surface of the Earth, with the satellite located at the vertex of the cone, then the area on the Earth’s surface is called the Broadcasting region of the satellite […]
Spaceships can be launched from earth to space in different ways. To launch a satellite it has to be launched at specific speeds at different altitudes where the speed depends upon the shape of orbit or the trajectory in which it has to be set. Watch the below video for understanding of trajectory of spaceships […]
A body on a planet is under the influence of the planet’s gravity and is bounded to it. Even a satellite revolving around a planet is said to be in bounded motion because it’s moving under influence of the planet’s gravitational field. Taking potential energy at infinity to be zero as a reference, when a […]
There are different ways in which problems are asked on orbital speed and applications of the energy of a satellite. Watch the example videos on very basic fundamental applications given below to develop a better understanding of concepts. Solved Example 1: Calculation of Orbital speed and Period of Satellite Motion Orbital speed can be calculated […]
A Satellite revolves around a planet in different orbits under the gravitational force of the planet. Here first we will discuss about the circular orbits in introduction and later we will also include the concepts related to motion of satellites in elliptical orbits. For a stable circular motion around planet, a satellite requires necessary centripetal […]
When we assemble a system of particles in a given configuration and shape, the work done against the gravitational forces of the system will be considered as the interaction potential energy of the system. Similarly, for a single body, the interaction energy of all the particles of the body is called gravitational self-energy of the […]
A Tunnel in a Solid Sphere: If a body is released from rest at some distance outside a solid sphere, having a diametrical tunnel along its length, then the body will accelerate due to gravitational force by the sphere. It enters into the tunnel, and inside the sphere the gravity decreases and becomes zero at […]