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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 FM

B

shorter antenna for the AM channel and longer for the FM

C

same length antenna will work for both

D

information given is not enough to say which one to use for which

Text Solution

Verified by Experts

The correct Answer is:
B
The freuquency of AM channel is 1020 kHz whereas for the FM it is 89.5 MHz (given ). For higher frequencies (MHz), space wave communication is needed. Very tall towers are used as antennas .
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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?

DISHA PUBLICATION-COMMUNICATION SYSTEM -EXERCISE-2 : Concept Applicator
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  2. In optical communication system operating at 1200nm, only 2% of the so...

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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. Antennas are used to receive and transmit

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  5. An AM wave is expressed as e=10(1+0.6cos2000pit)cos2xx10^(8)pit "volts...

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  6. Calculate the power developed by an amplitude modulated wave in a load...

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  7. 12 signals each band limited to 5 kHz are to be transmitted by frequen...

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  8. In a radar system, peak transmitted power is increased a factor of 81 ...

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  9. A carrier frequency of 10kV at 1 MHz is amplitude modulated by a 1 kHz...

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  10. A 1000 kHz carrrier is simultaneously modulated with 300Hz, 800Hz and ...

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  11. A 10 kW carrier is sinusoidally modulated by two carriers correspondin...

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  12. An FM signal has a resting frequency of 105MHz and highest frequency o...

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  13. A super heterodyne receiver is designed to receive transmitted signals...

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  14. Consider the following amplitude modulated (AM) signal, where fm lt B ...

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  15. An AM - signal is given as x(AM) (t) = 100[ p (t) + 0.5g (t) ] cos o...

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  16. A device with input x (t) and output y ( t) is characterized by : y(...

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  17. A sinusoidal carrier voltage of frequency 10 MHz and amplitude 200 vol...

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  18. An audio signal consists of two distinct sound. One a human speech sig...

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  19. A carrier frequency of 1 MHz and peak value of 10 V is amplitude modul...

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  20. For an A.M. wave, the maximum and minimum amplitude is found to be 20V...

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