Gravitational Filed: The space surrounding a material body in which its gravitational force of attraction can be experienced is called its gravitational field. Gravitational Filed Intensity: Gravitational filed intensity at any point is defined as the gravitational force experienced by any test mass divided by the magnitude of test mass when placed at desired point. Read more about Gravitational Filed and Potential[…]
The satellite which appears stationary relative to earth is called geostationary or geosynchronous satellite, communication satellite. A geostationary satellite always stays over the same place above the earth such a satellite is never at rest. Such a satellite appears stationary due to its zero relative velocity w.r.t. that place on earth.The orbit of a geostationary Read more about Geostationary Satellite[…]
Force on the side wall of the vessel cannot be directly determined as at different depths pressures are different. To find this we consider a strip of width dx at a depth x from the surface of the liquid as shown in figure, and on this strip the force due to the liquid is given Read more about Force on Side Wall of a Vessel[…]
(1) Translatory equilibrium: When a body of density ρ and volume V is immersed in a liquid of density σ, the forces acting on the body are Weight of body W = mg = Vρg, acting vertically downwards through centre of gravity of the body. Up thrust force = Vσg acting vertically upwards through the centre Read more about Floatation[…]
Elastic Property of Matter: (1) Elasticity: The property of matter by virtue of which a body tends to regain its original shape and size after the removal of deforming force is called elasticity. (2) Plasticity: The property of matter by virtue of which it does not regain its original shape and size after the removal Read more about Elasticity[…]
Isothermal process:- The process in which temperature remains constant is called isothermal process. But practically isothermal process is impossible, because for a isothermal process to occur there should be infinite conductive material, which is not possible. For this purpose only we perform a work slowly so thatExternal work done by an ideal gas in isothermal Read more about Application of First Law of Thermodynamics on Different Process – II[…]
Application of first law of Thermodynamics on different process we have the different process like. Cyclic process Isolated process Isothermal process Isobaric process Isochoric process Adiabatic process Cyclic process:- When a system is taken form an initial state to other state and finally brought back to the initial state, then it is called “Cyclic Process”. Read more about Application of First Law of Thermodynamics on Different Process – I[…]
In a fluid, at a point, density ρ is defined as: ρ = limΔV → 0 Δm/ΔV = dm/dV.(1) In case of homogenous isotropic substance, it has no directional properties, so is a scalar. (2) It has dimensions [ML-3] and S.I. unit kg/m3 while C.G.S. unit g/cc with 1g /cc = 103kg/m3 (3) Density of Read more about Density[…]
Every physical system has associated with it a certain point whose motion characterises the motion of the whole system. When the system moves under some external forces, then the point moves as if the entire mass of the system is concentrated at this point and also the external force is applied at this point for Read more about Centre of Mass[…]
When two bodies (one being solid and other liquid or both being liquid) at different temperatures are mixed, heat will be transferred from body at higher temperature to a body at lower temperature till both acquire same temperature. The body at higher temperature releases heat while body at lower temperature absorbs it, so that Heat Read more about Calorimetry[…]