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forsale [732]
3 years ago
15

OSCilloscope shows wave starts cycle minimum 20 units reaches max of 100 units before completing 5 milliseconds what is relation

ship between time and wave function
Physics
1 answer:
Vitek1552 [10]3 years ago
6 0

Answer:

T=0.02\ s

f=50\ Hz

Explanation:

Given:

  • minimum amplitude at the start of oscillation cycle, a_0=20\ unit
  • the first maximum amplitude after the start of oscillation cycle, a_{m1}=100\ units
  • Time taken to reach from the first minima to the first maxima, t=5\times 10^{-3}\ s

As we know that an oscilloscope executes a wave cycle represented by a sine wave. So we can deduce that it  has executed one-fourth of the cycle in going from the amplitude of 20 units to 100 units in 0.005 seconds.

<u>So the time taken to complete one cycle of the oscillation:</u>

T=4\times 0.005

T=0.02\ s is the time period of the oscillation

<u>We know frequency:</u>

f=\frac{1}{T}

f=\frac{1}{0.02}

f=50\ Hz

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