Page 642 - SUBSEC October 2017_Neat
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2. (a) An oscillating system has a period, T, which is related to the length, l, of the suspension by
the equation T = al , where a and n are constants. Table 2 shows the time periods obtained as
n
the length was changed.
(i) Complete Table 2 by inserting the values for lg l and lg T.
Table 2
l/mm 2.31 292 411 515 859
T/s 0.94 1.06 1.27 1.42 1.86
lg l
lg T
[3 marks]
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(ii) Express the above equation in the form of a straight line.
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[2 marks]
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