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A signal emitted by an antenna from a ce...

A signal emitted by an antenna from a certain point can be received at another point of the surface in the form of

A

sky wave

B

ground wave

C

sea wave

D

Both (a) and (b)

Text Solution

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The correct Answer is:
D
A signal emitted by an antenna from a certain point can be received at another point of the surface in the form of sky wave ground wave depending upon the frequency of signal .
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COMMUNICATION SYSTEM-Exercise 1
  1. If the critical frequency for sky wave propagation is 12 MHz , then th...

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  2. The sky wave propagation is suitable for radiowaves of frequency

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  3. A signal emitted by an antenna from a certain point can be received at...

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  4. Which of the following frequencies will be suitable for beyond the hor...

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  5. Is it necessary for a transmitting antenna to be at the same height as...

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  6. When electromagnetic waves enter the ionised layer of ionosphere, then...

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  7. Name the type of waves which are used for line of sight (LOS) communic...

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  8. In space communcation , the information can be passed from on place ...

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  9. What fraction of the surface area of earth can be covered to estab...

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  10. Beyond which frequency, the ionosphere bends any incident electromagne...

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  11. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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  12. In earth's atmosphere for F(1)-layer , the virutal height and critic...

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  13. Fading is the variation in the strength of a signal at a receiver due ...

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  14. In earth's atmosphere for E- layer , the virtual height and critical ...

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  15. If the TV telecast is to cover a radius of 120 km ( Given , the radiu...

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  16. Space wave propagation is used in (a) microwave communication (b) ...

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  17. Ozone layer above earth's atmosphere will not

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  18. The air of earth's atmosphere responsible for absorbing a large port...

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  19. Match the following column I and Column II

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  20. A radiowave that travels in a straight line from the transmitting ante...

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