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The frequency of plane progressive wave...

The frequency of plane progressive wave is 100 Hz. After how much time the same point will be `90^@` out of phase ?

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To solve the problem of determining how much time it takes for a point on a plane progressive wave to be 90 degrees out of phase, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Frequency**: The frequency (f) of the wave is given as 100 Hz. 2. **Calculate the Time Period (T)**: ...
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