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A house is air conditioned using solar energy. Solar radiation heats a pressurized tank such that the temperature is maintained at 175o C. 1500 kJ must be extracted from the house to maintain the temperature at 24o C when the ambient temperature is 33o C. Determine the minimum amount of heat that must be extracted from the tank of water by any device built to accomplish the required cooling of the house.
Write a mathematical expression for deviation produced by a thin prism and illustrate the terms.
What is the effect of torque and equilibrium on taps,doors,handlebars and bicycles?
It is a measure of how easily a dielectric material polarizes in response to an electric field.
Unit of Capacity: The unit of capacity of a capacitor is known as farad (f). It is given by a relation. q = cv.
Factors which are affect velocity of sound in gaseous medium is (1) Effect of density (2) Effect of pressure (3) Effect of temperature : (4) Effect of humidity
A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of
Advantages of fibre optics: Fibre-optic communications systems have a large bandwidth, e.g. 1 GHz. The bandwidth is the maximum rate at which information can be transmitted.
Give the conditions needed for production and observation of interference pattern?
For which of the following does the centre of mass lie outside the body 1. A pencil 2. A shotput 3. A dice 4. A bangle Solution) 4. bangle ; centre of mass of hollow objects
Manganin is an alloy of (A) Copper, manganese and nickel. (B) Copper and manganese. (C) Manganese and nickel. (D) Manganese, aluminium and nickel. Ans:
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