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Should real time instruments like oscilloscopes be time invariant?

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in Signals and Systems by (1.2m points)
Should real time instruments like oscilloscopes be time invariant?

(a) Yes

(b) Sometimes

(c) Never

(d) They have no relation with time variance

This question was posed to me in an interview for internship.

Asked question is from System Classification and Properties in chapter Signals and Systems Basics of Signals and Systems

1 Answer

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by (42.1k points)
Right choice is (a) Yes

Easy explanation: Oscilloscopes should be time invariant, i.e they should work the same way everyday, and the output should not change with the time at which it is operated.

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