A simple pendulum consists of a small heavy mass called a bob suspended from a fixed point by a light inextensible string. It swings back and forth in a periodic motion. The time taken for one complete oscillation depends on the length of the string and acceleration due to gravity.
Chapter 13 of Class 11 Physics covers Oscillations for the CBSE Exam 2024-25. It explains periodic motion, simple harmonic motion, and its equations. Key topics include displacement, velocity, acceleration, time period, frequency, and energy in SHM. The chapter also discusses damping, forced oscillations, resonance, and practical applications of oscillatory motion in physics.
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It is correctly expressed as, T = 2π √(l/g).
The time period (T) of a simple pendulum of length l is expressed by the formula given below:
T = 2π √(l/g)
where,
– l is the length of the pendulum,
– g is the acceleration due to gravity.
This equation implies that the time period varies as the square root of the length and is inversely proportional to the square root of gravity.
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