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A specially designed oscilloscope used to graphically display a:

A specially designed oscilloscope used to graphically display a video signal:  (A) Vu Meter (B) Viewfinder (C) Studio Monitor (D) Waveform Monitor Correct Ans: (D) Explanation: A Waveform Monitor is a specialized oscilloscope that is designed to display and analyze a video signal. It helps technicians measure the amplitude, frequency, and phase of video signals. […]

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What indicates the size of the aperture opening on a camera?

What indicates the size of the aperture opening on a camera? (A) Auto Focus (B) F- stop (C) Shutter (D) Viewfinder Correct Ans: (B) Explanation:The size of the aperture opening on a camera is indicated by the F-stop. The F-stop (or f-number) represents the ratio of the lens’s focal length to the diameter of the

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