Question

A spring having a spring constant ‘K’ is loaded with a mass ‘m’. The spring is cut into two equal parts and one of these is loaded again with the same mass. The new spring constant is

• A. $K / 2$
• B. $K$
• C. $2 K$
• D. $K ^ { 2 }$

Answer 1

Answer: (C)

$2 K$

Answer 2

Spring constant $( k ) \propto \frac { 1 } { \text { Length of the spirng } ( l ) }$ as length becomes half, k becomes twice is 2k.