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Generate and plot a sampled sine wave with fs=8kHz, of 4 seconds duration, with frequency ω0 = Π/10 and amplitude A = 1.2. The waveform equation is
x(n) = A sin nω
Explain the role of each of the variables in this equation. What is the true (Hertz) fre- quency generated in this case?
Generate a Gaussian random signal vector, v(n), of the same length. Then generate a noisy signal of the form
y(n) = x(n) + αv(n)
(2) Listen to the resulting signal y(n) for various values of α. You will have to choose the value of α experimentally - try both small and large, and investigate the differences. Plot one of the waveforms, and comment briefly on your results.
as flux = E.A and flux density is equal to flux/A then why A/A cannot e cancelled ?
Correspondence principle (N. Bohr) The principle that when a new, more general theory is placed forth, it has to decrease to the more specialized (and usually simpler) theory
Derive an expression for the velocity of transerve wave in stretched uniform string
Electric charge is a physical property of matter that causes it to experience a force when near other electrically charged matter. There exist two types of electric charges, called
UNIT AND DIMENSION OF DISPLACEMENT. The S1-unit of displacement is metre (m). The dimension of displacement is [L] or [M o LT o ]
GM counter
What is the means in which light waves travel? Ans: Light is the only type of wave that doesn't require a medium. Confirmation that light will travel through vacuum is the
In optics what is intended by the expression "constructive interference." Answer: This is factual for any kind of waves. Any time you have coherent waves of the same kind
Define Railway Tanker? A long, cylindrical tank is placed on a carriage that is able to slide without friction on. The mass of the empty tanker is M=180 kg at first the tank is
A negative point charge 10 -8 coulomb is located in air at the origin of a rectangular coordinate system. What is the electric field intensity at a point on the positive x directi
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