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Microwaves and Radio waves:
Microwaves are produced by high frequency electromagnetic oscillators in electric circuits. Microwaves are electromagnetic waves with wavelengths in the range 10 m m to 10 m.
Radio waves are produced by accelerated electrons in suitable electronic circuits. Radio waves have wavelengths from 1m to 100km.
When two dissimilar sound rays of slightly different frequencies, traveling in a phase along the same direction, superimpose on one other, the intensity of the resultant sound at a
Displacement: - The modification in position of a body in a certain direction is known as displacement. It is a vector function and its unit in SI system is meter.
Briefly explain Brewster's law? Show that at the polarizing angle of incidence the reflected and transmitted light becomes perpendicular to each other.
The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: a) 1.5 seconds b) 6 seconds c) 16.7 seconds d
A force of 25 N is applied vertically at the end of a wrench handle that is 45 cm long to tighten a bolt in the clockwise direction. What torque is required by the bolt to keep the
Write a short (approx. one page) review of the contribution of one of the following people to the historical development of Physics; Aristotle Ibn al-Haytham Ga
why metallic frame used in searles apparatus
why it is not possible to charge one object by rubbing without charging another object by rubbing
Define magnetic moment of a current loop. The magnetic moment of a current loop is described as the product of the current and the loop area. Its direction is perpendicular to
Dimension of unit impulse DIMENSION ? The dimension of impulse is [MLT -1 ]
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