experiment on simple pendulum with suitable diagram to find oscillation and time period
Answers
Answer:
Calculate the time of one oscillation or the period (T) by dividing the total time by the number of oscillations you counted. Use your calculated (T) along with the exact length of the pendulum (L) in the above formula to find "g." This is your measured value for "g." Repeat the above procedure for 3 more cases.
Objective
Our objectives are;
To plot a L-T2 graph using a simple pendulum.
To find the effective length of the simple pendulum for a given time period using the graph.
To calculate the acceleration due to gravity at a place.
The Theory
What is a Simple Pendulum?
An ideal simple pendulum consists of a heavy point mass (called bob) tied to one end of a perfectly inextensible, flexible and weightless string. In practice, we make it by tying a metallic spherical bob to a fine cotton stitching thread.
Length of a Simple Pendulum
The distance between the point of suspension of the pendulum and its Centre of Gravity (C.G.), which is the C.G. of the bob, is called the length of the simple pendulum. It is represented using the aphabet ( l ).
Time Period of a Simple Pendulum
Time period is the time taken by the bob of the simple pendulum to make one complete oscillation. It is represented by the letter T.
Finding the acceleration due to gravity
The time period of a simple pendulum depends on the length of the pendulum (l) and the acceleration due to gravity (g), which is expressed by the relation,
If we know the value of l and T, we can calculate the acceleration due to gravity, g at that place.
The L-T2 graph
We can plot a graph between l and T2 by taking l along the X axis and T2 along the Y axis. The graph is a straight line.
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