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A radiostation has two channels. One is ...

A radiostation has two channels. One is AM at 1020 kHz and the other FM at 89.5MHz. For good results you will use

A

Longer antenna for the AM channel and shorter for the PM

B

shorter antenna for the AM channel and longer for the FM

C

same length antenna will work for both

D

Information gives is not enough to say which one to use for which

Text Solution

Verified by Experts

For the communication of AM channel of frequency 1020 kHz, ground wave propagation is used. For this the antenna need not be very tall. For the communication of FM channel of frequency 89.5MHz, the space wave propagation is needed. For this, very tall towers are used as antenna.
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Many people who are looking to get a pet dog get a puppy. There are many reasons why people get puppies. After all, puppies are cute, friendly, and playful. But even though puppies make good pets, there are good reasons why you should consider getting an adult dog instead. When you get a puppy, you have to teach it how to behave. You have to make sure that the puppy is housebroken so that It does not go to the bathroom inside the house. You have to teach the puppy, not to jump up on your guests or chew on your shoes. You have to train the puppy to walk on a leash. This is a lot of work. On the other hand, when you get an adult dog there is a good chance that it will already know how to do all of the previously mentioned things. Many adult dogs have already been housebroken. Many adult dogs will not jump on or chew things that you do not want them to jump on or chew. Many adult dogs will be able to walk on a leash without pulling you to the other side of the street. Puppies also have a lot of energy and want to play all of the time. This can be fun, but you might not want to play as much as your puppy does. Puppies will not always sleep through the night or let you relax as you watch television. On the other hand, most adult dogs will wait on you to play. What is more, they will sleep when you are sleeping and are happy to watch television on the couch right beside you. There is one last reason why you should get an adult dog instead of a puppy. When most people go to the pound to get a dog, they get a puppy. This means that many adult dogs spend a lot of time in the pound and some never find good homes. So if you are looking to get a dog for a pet, you should think about getting an adult dog. They are good pets who need good homes. The author begins paragraphs 2 and 4 with the phrase, "On the other hand". This phrase is used to

Many people who are looking to get a pet dog get a puppy. There are many reasons why people get puppies. After all, puppies are cute, friendly, and playful. But even though puppies make good pets, there are good reasons why you should consider getting an adult dog instead. When you get a puppy, you have to teach it how to behave. You have to make sure that the puppy is housebroken so that It does not go to the bathroom inside the house. You have to teach the puppy, not to jump up on your guests or chew on your shoes. You have to train the puppy to walk on a leash. This is a lot of work. On the other hand, when you get an adult dog there is a good chance that it will already know how to do all of the previously mentioned things. Many adult dogs have already been housebroken. Many adult dogs will not jump on or chew things that you do not want them to jump on or chew. Many adult dogs will be able to walk on a leash without pulling you to the other side of the street. Puppies also have a lot of energy and want to play all of the time. This can be fun, but you might not want to play as much as your puppy does. Puppies will not always sleep through the night or let you relax as you watch television. On the other hand, most adult dogs will wait on you to play. What is more, they will sleep when you are sleeping and are happy to watch television on the couch right beside you. There is one last reason why you should get an adult dog instead of a puppy. When most people go to the pound to get a dog, they get a puppy. This means that many adult dogs spend a lot of time in the pound and some never find good homes. So if you are looking to get a dog for a pet, you should think about getting an adult dog. They are good pets who need good homes. As used in paragraph 3, which is the best synonym for relax?

PRADEEP-COMMUNICATION SYSTEMS-Exercise
  1. Which of the following device is full duplex?

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  2. A signal of 5 kHz frequency is amplitude modulated on a carrier wave o...

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  3. A radiostation has two channels. One is AM at 1020 kHz and the other F...

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  4. Fig. 10 (CF).1 is the circuit diagram of an AM demondulator. For good ...

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  5. If both the length of an antenna and the wavelength of the signal to b...

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  6. Which of the following four alternatives is not correct, We need modul...

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  7. Refractive index of ionosphere is:

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  8. Greenhouse 'warming' is caused by an atomosphere which is

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  9. Beyond which frequency, the ionosphere bends any incidne electrognetic...

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  10. The frequencies of electromagnetic waves employed in space communicati...

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  11. In short wave communication waves of which of the following frequeunci...

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  12. Electromagnetic waves of frequencies higher than 9sqrt(2) MHz are foun...

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

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  14. An EM wave of maximum frequency 300 kHz and critical freqeuncy 100 kHz...

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  15. What is the refractive index of E-layer when the electromgnetic wave f...

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  16. If sky wave with a frequency of 60 MHz is incident on D- region at an ...

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  17. The sky wave with a frequency of 20 MHz is incidnet on D-region at an ...

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  18. The wavelength of electromagnetic waves employed for space communicati...

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  19. Through which mode of propagation, the radio waves can be sent from on...

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  20. A sky wave with a frequency 55 MHz is incidnet on D-region of earth's ...

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