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why the centre of newton ring is black
A bottle and marble Pour some sand into a wide mouthed bottle. Place a piece of cardboard about 5 cm square over the mouth of the bottle. Set the marble on the cardboard and th
Is it probable for the electric field to be non-zero at a point in space where the electric potential is zero? Ans: Regard as for instance the case of an electric potential
Two pole vaulted clear the bar at the same height. The first lands at a speed of 8.90 m/s and the second lands At a speed of 9m/s the first vaulted clears the bar at a speed of 1
Centripetal Force Requirement Uniform circular motion could be elaborates as the motion of an object within a circle at a constant speed. As an object moves within a circle and
Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns.
Lambert's laws (J.H. Lambert): Lambert's first law The illuminance on a surface illuminated through light falling onto it perpendicularly from a point source is propor
B-Infrared (IR) Radiant Heat Heat radiation can be achieved by using infrared (IR) radiation it penetrates about 3mm in the skin. excessive exposure can cause erythema(redden
When is the combination of cells advantageous and why? (Mar 2009) What do you mean by internal resistance of a cell? Write down the value of internal resistance of an ideal cell
Constantan: Constantan is a copper-nickel alloy. The amount of nickel in constantan is 40%. Properties: 1. It is silver like appearance. 2. Its electrical res
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