Bissoy.com
Doctors Medicines MCQs Q&A

What is the condition for a signal x(n)=Brn where r=eαT to be called as an decaying exponential signal?

What is the condition for a signal x(n)=Brn where r=eαT to be called as an decaying exponential signal? Correct Answer 0<r<1

When the value of ‘r’ lies between 0 and 1 then the value of x(n) goes on decreasing exponentially with increase in value of ‘n’. So, the signal is called as decaying exponential signal.

Related Questions

A complex exponential signal is a decaying exponential signal when
Consider the following statements related to stability of the control system : 1. Poles in right half-plane (rhp) yield pure exponential decaying natural response. 2. If poles of multiplicity greater than one are present on the imaginary axis, then the system is marginally stable, 3. If one pole is present in right-half plane, the system is unstable. 4. A system is stable if the natural response approaches zero as time approaches  infinity. Which of the above statements is/are not correct ?  
Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
Planck’s law is given by – 2 b) (E) b = π c 2 h – 3]. c) (E) b = 2 π c 2 h (Wavelength) -5/exponential – 1 d) (E) b = 2 c 2 h (Wavelength) -5/exponential – 6
In an opencast mine, dumpers arrive at a shovel location with an average arrival rate of 12 per/hour. The inter-arrival times of the dumpers follow an exponential distribution. The service times of the shovel also follow an exponential distribution with an average of 3 minute. The average waiting time of a dumper in the queue in minutes is
What is the condition of a periodicity of exponential signal eαt?
Which of the following is/are the condition(s) related to aggression in socialization studies? I. Aggression – rewarded condition II. Aggression – punished condition III. No – consequences condition
Which of the following statements are true about quicksand? i. It is only a condition but not a type of sand. ii. It is a condition and a type of sand too. iii. Quicksand condition reaches when critical hydraulic gradient is approximately equal to unity. iv. Quicksand condition occurs more commonly in coarse grained sand or gravels than fine sand.
Directions : In each of the following questions a statement is given, followed by three conclusions. Give answer :

Statement : The economic condition continues to be critical even after a good harvest season.

Assumptions :
I. The economic condition was not critical before the harvest season.
II. The economic condition could not have improved without a good harvest season.
III. The economic condition was expected to improve after a good harvest season.
Some people in Manipur live in houses bunt on floating islands of weeds and decaying vegetation held together by suspended slit. These islands are called