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Q. Explain density?
Answer:-
Density is a physical characteristic also is a measure of mass per unit of volume of a material or substance. It is a dimension of the amount of matter in a given volume of something.
The higher an object's density means the higher it's mass per unit of volume. The average density of an object equivalent its total mass divided by its total volume. A denser thing (such as iron) will have less volume than an equal mass of some less dense substance (such as water).
Explain logarithmic decrement? Evaluate the ratio of nth amplitude with 1st amplitude in case of under damped oscillation.
True or False. The specific gravity of a fluid that sinks in water is greater than 1.00.
The structure of a simple d.c. motor and explain briefly how it works
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Explain the applications of polarization of light? Write any four applications of interference of light. Illustrate how plane polarized light obtained by reflection.
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experi
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how to find resultant?
Penetration power of proton is: (1)More than electron (2)Less than electron (3)More than neutron (4)None Ans:(2)Less than electron
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