Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Andrew W
Andrew W asked in Science & MathematicsEngineering · 7 years ago

What is the frequency of the sinusoidal wave?

The horizontal sweep rate of an oscilloscope (scope) is set to 0.1 millisecs/division. The scope screen shows a sinusoidal wave that goes through 2 cycles in 5 divisions. What is the frequency in Hz of the sinusoidal wave?

I was thinking 1 cycle in 2.5 divisions, so 2.5 div * 0.1 millisecs/div = 0.25 Hz. I'm not sure, though. Help?

3 Answers

Relevance
  • Rick
    Lv 7
    7 years ago

    2.5 div * .1 msec/div= 2.5 msec. Frequency isa 1/t=1/.0025=4000.

  • ?
    Lv 5
    7 years ago

    f= 1/t

    2.5*0.1 = 2.5 msec

    f = 1/2.5 ms

    = 4000 Hz

  • Philomel
    Lv 7
    7 years ago

    2c/5Div=4c/10div=40c/100Div = 400c/1,000Div = 4,000/10,000 div= 4000/sec = 4Khz

Still have questions? Get your answers by asking now.