Which of the following is the process of ‘aliasing’?

Which of the following is the process of ‘aliasing’? Correct Answer Spectral overlapping

Aliasing is defined as the phenomenon in which a high frequency component in the frequency spectrum of the signal takes the identity of a lower frequency component in the spectrum of the sampled signal. Aliasing can occur if either of the following condition exists: • The signal is not band-limited to a finite range. • The sampling rate is too low.
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Related Questions

Statement (I): Aliasing occurs when the sampling frequency is less than twice the maximum frequency in the signal. Statement (II): Aliasing is a reversible process.
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Study the following information carefully and answer the given questions. For a recruitment process in an ACCOUNTING organization, the candidates need to possess the following qualifications criteria: i) He/she must be a graduate in commerce with at least 60% marks. ii) He/she must be at least 24 years of age and not more than 40 years as of 1-7-2016. iii) He/she must have post-qualification work experience of at least 2 years. iv) He/she should have secured 55% marks in the selection process. However, if the candidate fulfills the above-mentioned criteria except: (A) at (i), and if the candidate is not a graduate in commerce but has a post-graduation degree in finance with a minimum of 60% marks, he/she should be referred to the Finance Manager of the organization. (B) at (iii), and if the candidate fulfills all the eligibility criteria of post-qualification work experience but has secured 75% marks in the selection process, he/she may be referred to the Trainee Accountant. Based on the above information, study carefully whether the following candidates are eligible for the recruitment process and mark your answer as follows. You are not to assume anything other than the information provided in each question. All the cases are given to you as of 1-7-2016. Snehlata’s date of birth is 6.2.1990. She has done her graduation and post-graduation in Commerce and secured 61% and 63% marks respectively. She has post-qualification work experience as a Senior Accountant of 3.5 years. She has secured 58.5% marks in the selection process.
Study the following information carefully and answer the given questions. For a recruitment process in an ACCOUNTING organization, the candidates need to possess the following qualifications criteria: (i) He/she should be a graduate in commerce with at least 60% marks. (ii) He/she should be of at least 24 years of age and not more than 40 years as of 1-7-2016. (iii) He/she should have post-qualification work experience of at least 2 years. (iv) He/she should have secured 55% marks in the selection process. However, if the candidate fulfills the above-mentioned criteria except: (A) at (i), and if the candidate is not a graduate in commerce but has a post-graduation degree in finance with a minimum of 60% marks, he/she should be referred to the Finance Manager of the organization. (B) at (ii), and if the candidate fulfills all the eligibility criteria but of post-qualification work experience but has secured 75% marks in the selection process, he/she may be referred to the Trainee Accountant. Based on the above information, study carefully whether the following candidates are eligible for the recruitment process and mark your answer as follows. You are not to assume anything other than the information provided in each question. All the cases are given to you as of 1-7-2016. Mamatha has done graduation in Mechanical Engineering with 59% marks. Her date of birth is 3.5.1991. She is qualified in the selection process and has secured 45% marks in it. She also has two years of post-qualification work experience.
Read the information given below carefully and answer the given questions. For the recruitment process in an accounting organization, the following eligibility criteria are required for the candidates: i) Graduation in Commerce with minimum 60% marks. ii) At least 24 years and not more than 40 years of age as of 1-7-2016. iii) Candidates should have at least 2 years of work experience after education. iv) They should have secured 55% marks in the selection process. However, if the candidate fulfills the above criteria, except: (A) In case of (i), if the candidate is not a graduate in commerce but has a master's degree in finance with 60% marks, he/she should approach the Institute of Finance Management. (B) In case of (iii), if the candidate fulfills the eligibility criteria of at least 2 years work experience after education, not only that he has secured 75% marks in the selection process, he/she may be referred for Trainee Accountant. Based on the above information decide whether the following candidates are eligible in the selection process, and select the appropriate option. You do not have to think about anything other than the information given in the question. All the cases given to you are dated 1-7-2016. Anurag Kumar has 6 years of work experience after education. His birthday is 05-4-1992. He has scored 62% marks in the selection process. He has done his graduation in commerce and has scored 76% marks.
Calculate the minimum sampling rate to avoid aliasing when a continuous-time signal is given by x(t) = 5 cos 400πt
What is the minimum sampling rate to avoid aliasing when a continuous time signal is given by x(t) = 10 cos 400πt?