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Olbers' paradox (H. Olbers; 1826):
If the Universe is uniform, infinite & unchanging then the whole sky at night would be bright regarding as bright as the Sun. The further you looked out to space, the more stars there would be, and therefore in any direction wherein you looked your line-of-sight would impinge upon a star eventually. The paradox is resolved through the big bang theory, which puts forth that the Universe is dynamic, non-uniform and (probably) finite.
Two travelling sinusoidal waves are described by the wave functions Y 1 = 55.00 sin [π (4.00 x - 1200 t )] Y 2 =55.00 sin [π (4.00 x - 1200 t - 0.250)] Where x ,
Q. Explain Construction of michelsons interferometer? It consists of two highly polished plane mirror M1 and M2, with two optically plane glass plate G 1 and G 2 which are of
the equivalent capacitors of two capacitors 1.87microfarad when connected in series 8mf when connected in parrallel. find the individual capacitances
Zeroth law of thermodynamics If two bodies are each in thermal equilibrium along a third body, then all of the three bodies are in thermal equilibrium along with each other.
Objective After studying this unit, you should be able to: 1. explain the importance of international trade; 2. discuss why a fm is motivated to export; 3. identify
Q. Define: rms value of AC. RMS value of a.c. The rms value of alternating current is described as that value of the steady current which when passed through a resisto
what is scanning & transmission electron microscope
The water level in a tank is 20 m above the ground. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank is at sea
Obtain expression for an optical path difference for formation of circular fringe in Michelson''s interferometer
Digital multimeters: Digital multimeters offer a number of significant advantages when compared with their more humble analogue counterparts. The display fitted to a digital m
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