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In earth's atmosphere for E- layer , the...

In earth's atmosphere for E- layer , the virtual height and critical frequency are

A

80 km and 3 MHz

B

90 km and 3.5 MHz

C

120 km and 4.5 MHz

D

110 km and 4 MHZ

Text Solution

Verified by Experts

The correct Answer is:
D
The virtual height and critical frequency of E-layer is 110 km and 4 MHz.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COMMUNICATION SYSTEM-Exercise 1
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  2. Fading is the variation in the strength of a signal at a receiver due ...

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

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

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

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  6. Ozone layer above earth's atmosphere will not

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

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  8. Match the following column I and Column II

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

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  10. In process of amplitude modulation of signal to be transmitted . S...

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  11. In amplitude modulation, carrier wave frequencies are:

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  12. In a detector, output circuit consists of R = 10kOmega and C = 100 p F...

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  13. For efficient transmission, transmitting antenna has length comparable...

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  14. A radio transmitter radiates 1 kW power at a wavelength 198.6 m. How m...

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  15. A 100 m long anteena is mounted on a 500 m tall building. The complex ...

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  16. A 1000 kHz carrier wave is modulated by an audio signal of frequency r...

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  17. In frequency modulation

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  18. In frequency modulated wave

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  19. A speech signal of 3 kHz is used to modulate a carrier signal of frequ...

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  20. A transducer , in communication system in a device that

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