Question

If the same weight is suspended from three springs having lengths 1 : 3 : 5, the period of oscillations shall be in the ratio of –

• A. 1 : 3 : 5
• B. 1 : $\sqrt { 5 }$
• C. 15 : 5 : 3
• D. 1 : $\frac { 1 } { \sqrt { 3 } }$ : $\frac { 1 } { \sqrt { 15 } }$

Answer 1

Answer: (B)

1 : $\sqrt { 5 }$

Answer 2

T µ$\frac { 1 } { \sqrt { \mathrm {~K} } }$ and K µ $\frac { 1 } { \ell }$

\T µ $\sqrt { \ell }$