A planet of mass M has a satellite of mass m, revolving around the planet in a circular orbit of radius r and time period T. The mass (M) of the planet is [AMU 2000] (a) (b) (c) …
Universe is the limitless expanse of space around us consisting of solar system. star, galaxies etc. Solar System Solar system is a family of nine planets, satellites, asteroids, comets, meteors, meteroites and dust …
The energy of an electron in an isolated atom is decided by the orbit in which it is revolving. In a solid, these electron energies would be different because of the presence of many atoms placed close to each other. …
The biomass can be used to [CBSE PMT 1992] (a) Obtain alcohol (b) Generate biogas (c) Generate producer gas (d) All of these The economically friendly measure to conserve solar energy is [CBSE PMT …
Newton’s Law of Gravitation 1. The tidal waves in the sea are primarily due to (a) The gravitational effect of the moon on the earth (b) The gravitational effect of the sun on the earth (c) The gravitational …