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Explain about the term ultrasonics shortly.
The world ultrasonics applies to sound waves which vibrate at a frequency higher than the frequency which can be heard through the human ear or higher than around 20,000 hz. Sound is transmitted by one place to other by means of waves. The quality of any wave can be defined by identifying two associated properties: its frequency (f) or wavelength (lambda, λ). The unit utilized to measure the frequency of any wave is hertz. One hertz is described as the passage of a single wave per second.
A student finds that a particle whose life is micro-sec (µ- sec) moves with a velocity of 2.7 x 108 m/sec. i) What will be its lifetime as measured by another observer in the labor
what is the difference between nuclear fusion and nuclear fission?
Brownian motion (R. Brown; 1827) It is the continuous random motion of solid microscopic particles while suspended in a fluid medium because of the consequence of ongoing bomb
If either screen or source or both are at preset distance from the diffracting device (obstacle or aperture), the diffraction is known as Fresnel type.
Any rigid body suspended from a fixed support constitutes a physical pendulum. Let Consider the situation when the body is displaced by a small angle Torque on the body about O is
Water at 20°C flows through a long, straight pipe. The pressure drop is measured along a section of the pipe of length 1.3 m as a function of average velocity through the pipe. Res
A metal ring stand and rings A useful ring stand and rings can be made from a flat curtain rod and the fixtures which clamp over electric bulbs to hold lamp shades. These are u
Three similar coils, each having a resistance of 8 and an inductive reactance of 8 are connected (a) in star and (b) in delta, across a 415V, 3-phase supply. Measure for
Q. Describe the construction and working of Michelson Interferometer. Explain how you will determine the wavelength difference of two components of a line by Michelson Interferom
in what depends the charge that each material has? like glass positive; polystyrene negative; and ebonite negative; at the moment of charge a rod of those materials...?
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