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a) Explain what is meant by the term "Heat Energy"
b) An Aluminium bar 0.5m long, initially at 20°C is heated until its temperature rises by 50 0C. Determine the change in length of the bar that will occur.
c) Describe what is meant by the term "Adiabatic expansion"
d) Describe what is meant by the term "Thermal Resistance"
Q. Define the unit of self inductance. One henry is described as the self-inductance of a coil in which a change in current of one ampere per second produces an opposing emf of
How michelson interferometer is used to determine the wavelength difference between the D1 and D2 lines of sodiun
For each element the number of neutrons in the nucleus can vary. Isotopes :Nuclei of given element with different numbers of neutrons.If they are not radioactive they called
(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)
Viscosity in fluids is the analog of friction in solids. Both are methods by which the kinetic energy of moving bodies can be changed into thermal power. In the absence of friction
When the current in the primary coil of 400 turns of a magnetic circuit, enhances linearly from10mA to 35mA in 100ms, an e.m.f. of 75mV is induced into the secondary coil of 240 tu
What components/materials are chosen because of their especially high resistivity and explain why high resistivity
speed of a car
State and explain laws of transverse vibrations in stretched strings. Describe how do you verify them using sonometer.
Vector Addition While we become students of physics and approach the job of adding vector quantities, we soon become aware of the fact in which the addition of two vector quant
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