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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.
Describe dispersive power of the material of a prism. What do you mean by angular dispersion?
Advantages of Integrated Circuits (ICs) over conventional circuits: (1) Very small size- thousand times smaller than discrete circuit. (2) Very small weight due to miniatu
Forces on a Pendulum The weight, force because of tension, and total force exerted on the bob of a pendulum are displayed.
WHat is torque
If instead of molecule, we assume a molecular of a monatomic gas, which having of a one atom, the translational motion can take place in any direction in space. Thus it can be solv
QUESTION 1 A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.
Action and reaction in polling forces Secure two spring balances. Make a loop in every end of a short piece of strong cord. Join a spring balance to each end and have two pupil
Define Isothermal Compression and Adiabatic Expansion of Ideal Gas ? An ideal gas is dense at constant temperature from volume v 1 to volume v 2. a) Calculate the work
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
It is the need of elastic strength of a substance when subjected to repeated stresses and strain. If the substance is reserved undisturbed for some time, the previous properties ar
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