What is a perfect black body ?
A body that absorbs the entire radiation energy incident on it is called a…
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Magnetically Hard Material
A hard magnetic material, such as ALNICO (an alloy of aluminium, nickel and cobalt), h…
Two trains are traveling in the same direction.The first one leaves at 8 AM with a speed of 40km/hr and the second leaves at 11 AM with a speed of 60 km/hr. At what time will the second train catch the first train?
As per the question we can arrange the given data for the two trains as, Train 1 Spee…
What is Kirchhoff's law?
There are two laws of Kirchhoff which are used while studying the electri…