1.

In previous problem, if the body is suspended from the two springs connected in parallel, the time period will beA. `sqrt(T_1T_2)`B. `(T_1T_2)/(sqrt(T_1^2+T_2^2))`C. `sqrt((T_1^2T_2^2)/(2))`D. `(2T_1T_2)/(sqrt(T_1^2+T_2^2))`

Answer» Correct Answer - B
`k_(eq)=k_1+k_2`
`(1)/(T^2)=(1)/(T_1^2)+(1)/(T_2^2)=(T_2^2+T_1^2)/(T_1^2T_2^2)`
`T=sqrt((T_1^2T_2^2)/(T_1^2+T_2^2))=(T_1T_2)/(sqrt(T_1^2T_2^2)`


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