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Contact forces: types of forces that result when the two interacting objects are apparent to be physically linking each other.
Ex: frictional forces, tensional forces, normal forces, air resistant forces, applied forces.
Frequency The number of vibration done per second by an oscillation body is known its frequency. It is denoted by V. The S.I unit is Hz. V=1/T
why is nichrome wire used in electric heaters? properties of nichrome wire.
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explain with the aid of a diagram what is meant by the moment of a force about point
Where is the magnetic field because of a bar magnet strongest? Answer: This is just an experimental reality.
Why is quantum mechanics important? Quantum mechanics is important to understand the behavior of systems at atomic length scales and duration smaller. For illustration, when Ne
When wave emitted by a self luminous object is dispersed by a prism to get the spectrum, the spectrum is known as emission spectrum.
2-Cryogenics Cryogenic is the science of producing and using very low temperature. The study of low temperature effects in biology and medicine is called cryobiology. Low tem
The electric field E because of a point charge at any point near it is explained as where q is the test charge and F is the force acting on it. What is the physical significance of
Explain power of a lens. What is the principle of an optical fibre? What is a thin prism? Describe angular dispersion between two colours for a prism.
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