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Q. Illustrate what two properties of electromagnetic waves are used to attach info to radio signals?
Answer:-
By changing the amplitude of a radio wave you can encode information that is how AM-radio works. By changing the frequency (and hence its wavelength) of a radio wave you can as well encode information that is how FM radio works.
Can light is made to move or change along a side emitting optics? Along with roped or braided multicore fiber and a particular process at the common end optics can be made to c
candela; cd The basic SI unit of luminous intensity described as the luminous intensity in a given direction of a source which emits monochromatic photons of frequency 540 x 1
Natural and forced vibrations When we strike a tuning fork with a rubber hammer it vibrates with certain frequency. The frequency does not change even if we hit it harder.
A bob hanged to astrirg in a box .it is displaced to an agle of 45 .then fid the acceleration of the box at this moment. Ans) gsin45,that is 10/1.4142.as it would have only tangen
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) momentum but not energy b) neither moment
What occurs to the power dissipation if the value of electric current passing by a conductor of constant resistance is doubled? Normal 0 false false false
A 1.25-kg box is being pulled across a level surface where μk is 0.80. If the string is suddenly cut, causing the applied force to immediately go to 0.0 N, what is the rate of
Briefly explain how elliptically and circularly polarized light is generated. Describe the process for realization of plane polarized light from elliptically polarized light.
Q. State the fundamental postulates of special theory of relativity? The two basic postulates of the special theory of relativity are: (i) The laws of Physics are the simila
a) The medium separated up into a number of components. Every part is vibrating up and down as a whole. b) All the molecules in single particular segment vibrate in the same med
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