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Identify the mathematical expression for...

Identify the mathematical expression for amplitude modulated wave

A

`(A_c+A_m sin omega_m t) cos (omega_c t+phi)`

B

`A_c sin {omega_c t +phi + k_2v_m(t)}`

C

`{A_c +k_2v_m (t)} sin (omega_c t + phi)`

D

`A_cv_m (t) sin [omega_c t + phi]`

Text Solution

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-COMMUNICATION SYSTEMS -ASSIGNMENT SECTION A Objective (Only one answer)
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  2. A male voice after modulation transmission sounds like that of a femal...

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  3. A basic communication system consists of A. transmitter. B. informati...

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  4. Identify the mathematical expression for amplitude modulated wave

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  5. The distance between consecutive maxima and minima is given by-

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  7. Broadcasting antennas are generally

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  8. For television broadcasting, the frequency employed is normally

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  9. The sound waves after being converted into electrical waves are not tr...

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  10. The process of superimposing signal frequency (i.e., audio wave) on th...

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  11. In an amplitude modulated wave for audio frequency of 500 cycles/secon...

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  12. If there were no atmosphere, the average temperature on the surface of...

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  13. A TV transmission tower has a height of 240m. Signals broadcast from t...

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  14. Radiowaves of constant amplitude can be generated with

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  15. Ozone layer above earth's atmosphere will not

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  16. An audio signal of amplitude 0.1 V is used in amplitude modulation of ...

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  17. The frequency of amplitude modulated wave is equal to

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  18. The radio waves of frequency ranging from 2 MHz to 30 MHz are called

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  19. A device which connects one computer to another is known as

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  20. The loss of strength of a signal while propagating through a medium is...

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