Noise

Solved Example:

9166-01

White noise is characterized by: (UPPSC Polytechnic Lecturer Electronics Mar 2022 Paper II)

Correct Answer: D

Solved Example:

9166-02

Which type of noise is produced in a microwave tube due to random nature of emission and electron flow? (UPPCL JE EC Mar 2021 Shift I)

Correct Answer: C

Solved Example:

9166-03

The white noise spectral density: (UPRVUNL AE Electronics and Instrumentation 2021)

Correct Answer: B

Solved Example:

9166-04

Following are few statements regarding noise in communication system:

a) Atmospheric noise, shot noise, solar noise are examples of external noise sources

b) Noise temperature is useful in dealing with UHF noise

c) Thermal agitation is the only source of noise in receiver

Choose the correct answer:

(UGC NET Paper II: Electronic Science Jun 2019)

Correct Answer: A

Solved Example:

9166-05

The noise caused by random variations in the arrival of electrons or holes at the output electrode of an amplifying device: (ISRO (VSSC) Tech Asst Electronics 2018)

Correct Answer: C

Solved Example:

9166-06

Spectral density of the white noise is: (URSC (ISRO) Tech Asst (Electronics): Aug 2017)

Correct Answer: A

Solved Example:

9166-07

One of the following types of noise assumes importance at high frequncies: (SDSC (ISRO) Tech Asst (Electronics): April 2018)

Correct Answer: C