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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.
Advantages and disadvantages of three phase system over single phase system 1. In a single phase circuit the power distributed is pulsating. In three-phase system the total
For the double-beam oscilloscope displays shown in Figure, determine (a) their frequency (b) their r.m.s. values (c) their phase difference. The 'time/cm' switch is on 10
A more forceful argument which the weak principle: This implies that if the laws of the Universe were not favorable to the development of intelligent creatures to ask regarding the
Electrostatic shielding/screening is the phenomenon of protecting a particular region of space from external electric field. Sensitive instruments and appliances are affected serio
A universe is spatially flat, and contains both matter and a cosmological constant. For what value of Om,0 is t0 exactly equal to H0 -1?
Johannes Kepler revealed three empirical laws by using the data on planetary motion, pertaining to the orbit of planets. These laws are contained here because of the huge importanc
There is more number of substances in the universe than 109 elements. Most matter we run into on a day-to-day basis is composed of compounds-substances in which two or more element
How theta between plane of the coil and magnetic field remains constant
Q. Define: ampere in terms of force Ampere is defined as that steady current which when flowing through two parallel infinitely long straight conductors of negligible cross se
Q. What is artificial radioactivity? The phenomenon by which still light elements are made radioactive by artificial or induced methods is called artificial radioactivity. α
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