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According to their frequencies, waves are separated into three categories:
(1) Audible or sound waves : Range 20 Hz to 20 KHz. These are formed by vibrating bodies like as vocal cords, membrane or stretched strings.
(2) Infrasonic waves : Frequency lie below 20 Hz.
Example : waves formed during earth quake, ocean waves etc.
(3) Ultrasonic waves : Frequency greater than 20 KHz. Human ear cannot listen these rays, certain creatures such as dog, bat and mosquito show result to these.
Area of a Circle As a Limit Describing that the area of a circle is a limit of the sum of the area of interior triangles as the number of triangles goes to infinity.
Can Resultant of Two SHM be Non Periodic
A rod follower AB is subjected to a vertical up and down movement while resting on a circular contour of radius 30cm of a cam.the cam moves to the right with a velocity of 5 cm/s a
It is the ratio of the internal electric field induced by the charges on the surface on the dielectric when an external field applied to the polarization of the dielectric.
Questions: A capacitor is able to serve as which of the following? Answer: By classification a capacitor is a charge storage device. In storing charge a capacitor as we
Let's say I have a pinball (solid sphere) with a given mass and radius, and it is held back at a certain distance from equilibrium on a spring. The spring constant k is given, and
Ball bearings Place some marbles in the lid of a tin on the floor. Put single foot on the marbles and notice how simply you can spin round.
Majority and minority charge carriers A pure semiconductor has equal number of holes and electrons. But an extrinsic semiconductor has majority charge carriers. When a tri
Properties of Lines of Flux To make the imaginary lines of flux describe the behaviour of the magnetic field we must give them appropriate properties. Thus lines of flux have
How does a manometer measure gas pressur?e
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