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The molecular theory of magnetism was given by Weber and modified later by Ewing. According to that theory -
Each molecule of a substance is a complete magnet in itself. Though, in a magnetized atom the molecular magnets are randomly oriented to give zero net magnetic moment. On magnetizing, the molecular magnets are realigned in a particular direction leading to a net magnetic moment.
A particle with mass m = 2:5 is moving along a straight trajectory. The distance covered by a particle is described by the function S(t) = t 3 + 2t 2 , where t > 0 is the time
In a pulley system the eqn for length of inextensible string is y plus sq. root of x^2+h^2=constant ? how to differentiate y plus sq. root of x^2+h^2=constant to get vel & accn rel
#questiImagine a small observer is positioned in front of the cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How
to calculate average speed, divide distance by time?
Hawking radiation (S.W. Hawking; 1973): Black holes emit radiation such as any other hot body. Virtual particle-antiparticle pairs are being formed in supposedly empty space c
A galvanometer with a coil of resistance 120 ohm shows full scale deflection for a current of 2.5 mA. How will you change the galvanometer into an ammeter of range 0 to 7.5 A? Veri
q+q''=0
The average distance of an electron in an atom from its nucleus is of the order of: (1) 10 6 m (2) 10 -6 m (3) 10 -10 m (4)10 -15 m Ans: (3) 10 -10 m
Vince is determined to test law of gravity for himself walks a skyscraper 900ft. with zero initial velocity.Five seconds later, superman arrives at the scene and drive off the roof
Are there three various qualities of fiber optics? Absolutely there are three different qualities of fibers optics. The raw materials used during the manufacture of fibers may
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