A string fixed at both the ends of length 2m. Vibrating in its 7th overtone. Equation of the
Channel: Doubtnut
Date: 2020-04-12

A string fixed at both the ends of length 2m. Vibrating in its 7th overtone. Equation of the standing wave is given by `y=Asinkxcos(omegat+(pi)/(3))`. All the symbols have their usual meaning. Mass per unit length of the string is `0.5(gm)/(cm)`. Given that `A=1` cm and `omega=100pi(rad)/(sec)` Answer the following 2 questions based on information given (use `mu^(2)=10)`   Q. Starting from `t=0`, energy of vibration is completely kinetic at time t`t`, where t is: