MCQ
One pico Farad is equal to
- A${10^{ - 24}}F$
- B${10^{ - 18}}F$
- ✓${10^{ - 12}}F$
- D${10^{ - 6}}F$
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$I.$ The speed of the wave is $4n \times ab$
$II.$ The medium at $a$ will be in the same phase as $d$ after $\frac{4}{{3n}}s$
$III.$ The phase difference between $b$ and $e$ is $\frac{{3\pi }}{2}$
Which of these statements are correct

