ICSE Class 9 Answered

(a) Define simple pendulum. (b) State two factors which determine the time period of a pendulum. (c) Write an expression for the time period of a pendulum, stating clearly the meaning of symbols used.

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

Expert Answer

(a) Simple pendulum: A very heavy point mass suspended from a rigid support by a weightless and in extensible string and oscillating freely without friction about a point to which the upper end of string is fixed, constitues the simple pendulum.

(b) Factors which determine the time period:

(i) Time period is directly proportional to the square root of the effective length.

(ii) Time period is inversely proportional to the square root of the acceleration due to gravity.

(c)