Frequency refers to how often something occurs within a given time frame. It is commonly used in physics to measure wave cycles per second in hertz. In everyday life it describes repeated actions like daily routines and habits. High frequency means often repeated and low frequency means rarely occurring.
Oscillations is Chapter 13 in Class 11 Physics for the CBSE Exam 2024-25. It explains periodic motion where an object moves to and fro about a mean position. Topics include simple harmonic motion, time period, frequency and angular frequency. It also covers damping, resonance and energy in oscillatory motion with real-life examples like pendulums and springs.
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The right answer is T = 1/f.
The time period (T) of a wave is defined as the amount of time it takes for one complete cycle of the wave. It is related to frequency (f) by the formula:
T = 1/f
where:
– T is time period (in seconds),
– f is frequency (in hertz, Hz).
This is the inverse relation; it is such that as the frequency is higher, the time period will be less, and vice versa.
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