keeping in mind that the radius in a circle is always the same length, namely DB = DC, and also recalling that the point of tangency is always a right-angle, Check the picture below.
4. Consider the detection problem in the notes p.168-171 but with the threshold detector |Y | > γ =⇒ "say signal present" |Y
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Answer:
The time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.
Step-by-step explanation:
Total number of oscillations = 24
Time taken to complete 24 oscillations = 2 seconds
So, the frequency 'f' of the simple pendulum will be:
Let 'T' be the time period.
Therefore, the time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.